Tsev Phototherapy 2

Tsev Phototherapy 2

Cov tshuaj pleev thaiv hnub nrog cov txiaj ntsig SPF ntau dhau tuaj yeem ua rau muaj kev sib cuag dermatitis thiab ua rau cov khoom pov tseg tsis tsim nyog.

51. Yuav siv tshuaj pleev thaiv hnub zoo li cas tom qab kev kho mob hauv tsev?

Teb: Sim kom tsis txhob raug tshav ntuj rau hnub ntawm kev kho mob hauv tsev. Yog tias yuav tsum tawm mus, siv tshuaj pleev thaiv hnub kom raug raws li hauv qab no: 1. Thov 15 - 30 feeb ua ntej tawm mus . 2. Siv cov nyiaj txaus, ncav cuag 2mg / cm². CovCov kws tshaj lij pom zoo rau daim tawv nqaij Sunscreen(2017) pom zoo kom siv ib qho nyiaj ntawm 1-xees npib rau tag nrho lub ntsej muag [8]. 3. Rov qab tshuaj pleev thaiv hnub li 30 feeb tom qab hnub raug tshav ntuj . 4. Rov qab thov yam tsawg kawg txhua txhua 2 - 3 teev. 5. Rov ua dua tam sim tom qab tawm hws, ua luam dej, lossis kev sib txhuam, vim tias cov no yuav txo qhov tuab ntawm cov tshuaj pleev thaiv hnub. Rau kev kho kom zoo ntawm daim tawv nqaij, qee cov neeg mob koom nrog kev kho lub teeb liab rau hauv tsev nrog uv lub teeb kho cov txheej txheem.

52. Puas yog yuav tsum tau siv cov moisturizer tom qab kev kho mob?

Teb: Yog. Phototherapy tuaj yeem ua rau muaj kev phiv xws li tawv nqaij qhuav thiab khaus khaus. Nws raug nquahu kom siv cov moisturizer tom qab phototherapy los txo cov tsos mob no. Rau cov neeg mob psoriasis, moisturizing yog ib qho kev ntsuas kev laus. Siv cov moisturizer tsawg kawg ob zaug hauv ib hnub, tshwj xeeb tshaj yog tom qab tag nrho - lub cev phototherapy. Ua kom tiav qhov no nrog kev kho lub teeb pom kev tuaj yeem ua kom cov khaus khaus ntxiv.

53. Tom qab tau txais kev kho mob hauv tsev, Kuv puas tuaj yeem hla tsev kho mob ua raws-ups?

Teb: Tsis yog. Cov neeg mob nyob rau hauv tsev kho mob yuav tsum tau mus pw hauv tsev kho mob tsis tu ncua-ups, feem ntau ib zaug txhua 1 - 3 hli. Cov kws kho mob yuav kho cov koob tshuaj phototherapy lossis kev npaj kho mob raws li cov nyhuv phototherapy. Qhov tshwj xeeb zaus ntawm kev ua raws li -ups nyob ntawm tus mob thiab tus kws kho mob cov lus qhia. Tsis tas li ntawd, yog tias muaj kev hloov pauv ntawm cov tshuaj siv, nrog rau tus kws kho mob tam sim ntawd.

Vitiligo thiab Psoriasis Tsev Phototherapy 300 Cov Lus Nug

Tsis muaj qhov sib txawv hauv kev kho mob ntawm tag nrho -lub cev thiab ib nrab- lub cev cov khoom siv kho mob. Qhov txawv yog: rau cov kab mob ntawm daim tawv nqaij, tag nrho - lub cev ntaus ntawv tuaj yeem ua tiav cov kev kho mob ib zaug, thaum ib nrab ntawm - lub cev lub cev tuaj yeem tsuas irradiate pem hauv ntej / nraub qaum ntawm lub cev ib zaug. Kev kho lub cev tag nrho yuav tsum tau muaj ob lub irradiations, thiab txhua qhov kev kho mob yuav siv sij hawm ob zaug kom ntev li ntev tau nrog rau tag nrho - lub cev ntaus ntawv. Kev kho lub teeb liab rau hauv tsev tuaj yeem ua ib qho kev xaiv ntxiv rau kev txo qis hauv cov teeb tsa zoo li no.

29. Yuav Ua Li Cas Nco Ntsoov Thaum Yuav Lub Tsev Phototherapy Device?

Teb: Ua ntej, xyuam xim rau kev yuav khoom siv kho mob hauv tsev uas muaj kev pom zoo ua lag luam thiab muaj rau cov neeg mob siv hauv tsev. Thaum yuav khoom, xaiv cov cuab yeej kho mob hauv tsev pom zoo los ntawm NMPA nrog aCov cuab yeej kho mob sau npe daim ntawv pov thawj ntawm cov neeg koom pheej ntawm Tuam Tshoj, thiab tus neeg siv rau hauv daim ntawv pov thawj sau npe yuav tsum qhia meej tias nws yog rau cov neeg mob tus kheej - siv. Cov neeg mob tuaj yeem nug cov ncauj lus kom ntxaws txog cov khoom lag luam, suav nrog cov chaw tsim khoom thiab cov qauv, ntawm NMPA lub vev xaib raug cai siv daim ntawv pov thawj tus lej sau npe hauv phau ntawv. Nco ntsoov tias nws daim ntawv thov yog rau cov neeg mob tus kheej- siv (Daim duab 2-6) es tsis yog rau cov tsev kho mob nkaus xwb (Daim duab 2-7).

Piv nrog cov cuab yeej siv hauv tsev kho mob, tus kheej- siv cov cuab yeej siv tsis yog tsuas yog kev lees paub ntawm kev ua tau zoo tab sis kuj muaj kev nyab xeeb ntawm kev siv. Cov cuab yeej siv hauv tsev thiab kev kho mob sib txawv hauv cov kev xav tau rau ib puag ncig siv thiab cov cuab yeej ua haujlwm tsis zoo. Ua tib zoo nyeem phau ntawv qhia, tshawb xyuas cov lus qhia ntawm kev siv ib puag ncig hauv phau ntawv, thiab xyuas seb nws puas haum rau kev siv hauv tsev. Tsis txhob yuam kev yuav khoom siv kho mob kom tsis txhob muaj kev pheej hmoo ntxiv.

Daim duab 2-6: Screenshot los ntawm official lub website ntawm National Medical Products Administration. Cov qauv khoom hauv daim duab tuaj yeem "siv los ntawm cov neeg mob rau tus kheej-kev kho mob".

Daim duab 2-7: Screenshot los ntawm official lub website ntawm National Medical Products Administration. Cov qauv khoom hauv daim duab yog "rau cov tsev kho mob" siv.

Qhov thib ob, ua tib zoo xaiv cov cuab yeej siv kho kom zoo nkauj nrog kev kho kom raug wavelength raws li kev qhia ntawm tus kws kho mob. Ceev faj tsis txhob yuam kev xaiv cov khoom siv tshuaj tua kab mob nrog UVC raws li lub ntsiab wavelength.

Muaj ntau ntau cov khoom siv yees duab kho mob hauv khw (tshwj xeeb hauv online), suav nrog qee cov khoom cuav thiab cov khoom tsis zoo. Cov khoom zoo li no yuav tsis ua tiav cov txiaj ntsig kho mob thiab txawm tias muaj qee yam kev nyab xeeb. Nco ntsoov txheeb xyuas lawv thaum yuav khoom. Xav txog kev sib koom ua ke ntawm kev kho lub ntsej muag rau kev kho lub ntsej muag.

30. Puas siv tau 308nm Wavelength rau Tsev Phototherapy?

Teb: Muaj peb lub teeb ci rau 308nm phototherapy: 308 excimer laser, 308 excimer light, thiab 308 LED teeb. Cov yam ntxwv ntawm 308nm ultraviolet phototherapy li nrog peb lub teeb pom kev zoo no tau piav qhia hauv Table 2-3. Piv nrog rau cov khoom siv kho mob nrog cov raj fluorescent raws li qhov chaw teeb pom kev zoo, txhua yam ntawm 308nm lub teeb qhov chaw muaj lub zog tso zis ntau dua, lub sijhawm luv dua kom ncav cuag cov koob tshuaj zoo, thiab pib ua haujlwm sai dua. Nyob rau tib lub sijhawm, vim tias qhov chaw irradiation ntawm 308nm phototherapy li me me thiab tsuas yog irradiates cheeb tsam lesioned (tseem hu ua lub hom phiaj phototherapy), nws yog qhov tsim nyog rau kev kho mob ntawm daim tawv nqaij me me.

Thaum xaiv cov cuab yeej siv kho mob hauv tsev, ntxiv rau kev txiav txim siab txog kev ua tau zoo, kev nyab xeeb ntawm kev siv cov cuab yeej thiab seb puas yuav muaj kev cuam tshuam tsis zoo yuav tshwm sim kuj tseem ceeb heev rau cov qauv ntsuas. Raws li qhov no, National Medical Products Administration tau pom zoo 308nm LED cov khoom siv kho mob me me rau cov neeg mob kom tus kheej- kho raws li kev qhia ntawm tus kws kho mob.

Table 2-3: Cov yam ntxwv ntawm 308nm Ultraviolet Phototherapy Devices nrog peb lub teeb sib txawv

31. Yuav ua li cas thiaj tsim nyog xaiv cov cuab yeej siv kho mob hauv tsev?

Teb: Xaiv cov khoom siv kho mob raws li qhov loj thiab qhov chaw ntawm koj daim tawv nqaij. Rau qhov loj - cheeb tsam lossis cov kab mob ntawm daim tawv nqaij, nws raug nquahu kom siv tag nrho - lub cev lossis ib nrab - lub cev phototherapy, uas tuaj yeem txuag lub sijhawm kho ib zaug. Rau me me - thaj tsam ntawm daim tawv nqaij, ib lub cuab yeej siv kho mob tuaj yeem xaiv los txo qhov raug ultraviolet rau ib puag ncig ntawm daim tawv nqaij. Rau qhov chaw tshwj xeeb, cov cuab yeej siv tshuaj kho mob lossis cov khoom siv tshwj xeeb tsim los rau qhov chaw ntawd tuaj yeem xaiv tau. Piv txwv li, ib qho kev kho kom zoo nkauj nrog lub teeb pom kev zoo -cov khoom taw qhia tuaj yeem xaiv tau rau cov tawv taub hau (Daim duab 2-8). Kev kho lub teeb liab rau hauv tsev tuaj yeem yog lwm txoj hauv kev zoo rau cov tawv taub hau soothing tom qab uv lub teeb kho.

Daim duab 2-8: Handheld Phototherapy Device Equipped with a Phototherapy Comb.

32. Dab tsi yog Lub Tsev Kho Mob Lub Tsev Kho Mob nrog Lub Tsev Ua - nyob rau hauv Tsis Siv Neeg Timer?

Teb: Cov cuab yeej kho duab kho mob nrog lub teeb tsa- hauv lub sijhawm tsis siv neeg yog qhov ntse. Nws tuaj yeem suav rov qab tom qab kev kho mob pib (Daim duab 2-9) thiab cia li nres irradiation thaum lub sijhawm teem los yog lub sijhawm, uas tuaj yeem ua kom tsis txhob dhau -irradiation. Rau cov khoom siv phototherapy yam tsis muaj lub sijhawm ua haujlwm tsis siv neeg, yuav tsum tau siv sijhawm sijhawm, thiab cov cuab yeej kho duab kho mob raug muab tua manually tom qab lub sijhawm kho.

Daim duab 2-9: Phototherapy Device nrog Automatic Countdown Function.

33. Yuav Ua Li Cas Kho Cov Tshuaj Irradiation thiab Lub Sijhawm Kho Mob Thaum Lub Tsev Kho Mob?

Teb: Cov tsis tseem ceeb ntawm NB-UVB cov khoom siv kho mob hauv tsev muaj xws li irradiation time (s), irradiation koob tshuaj (mJ/cm²), thiab irradiation siv (mW/cm²). Cov mis hloov pauv ntawm lawv yog: Irradiation lub sij hawm (s)=Irradiation koob tshuaj (mJ / cm²) / Irradiation siv (mW / cm²).

Qee cov khoom siv phototherapy tuaj yeem teem caij ncaj qha rau irradiation koob tshuaj. Tom qab nkag mus rau qhov yuav tsum tau txhaj tshuaj irradiation, nias lub pob pib pib kho. Qee cov khoom siv phototherapy yuav tsum nkag mus rau lub sijhawm irradiation. Nyob rau hauv cov ntaub ntawv no, lub sij hawm irradiation xav tau rau kev kho tam sim no yuav tsum tau muab xam raws li cov mis raws li qhov yuav tsum tau irradiation koob tshuaj rau tam sim no kev kho mob ua ntej teeb. Qhov kev siv irradiation ntawm cov cuab yeej siv kho mob hauv tsev feem ntau yog qhia meej meej ntawm lub cuab yeej. Raws li kev siv irradiation ntawm cov cuab yeej siv, cov neeg mob suav lub sijhawm irradiation uas yuav tsum tau ua raws li cov qauv, thiab tom qab ntawd nkag mus rau lub sijhawm rau kev kho tam sim no rau hauv lub tshuab hluav taws xob phototherapy kom pib kho. Phototherapy teeb teeb kom meej meej koob.

34. Lub Sijhawm Irradiation Ntau Tshaj Plaws ntawm Ib Lub Tsev Kho Mob Phototherapy yog dab tsi?

Teb: Lub sijhawm siab tshaj plaws ib zaug irradiation sib txawv rau cov khoom siv kho mob sib txawv. Raws li cov kev cai ntawm Suav tshuaj kev lag luam tus qauv YY 0901-2013, lub siab tshaj plaws teem koob tshuaj ntawm UVB phototherapy li 5J. Qhov kev siv ntawm cov qauv sib txawv ntawm cov cuab yeej siv kho mob hauv tsev sib txawv, thiab lub sijhawm ntev tshaj plaws ntawm ib qho irradiation ntawm cov cuab yeej siv kho mob uas koj siv tuaj yeem suav tau raws li cov qauv.

35. Tom qab tau txais kev kho mob hauv tsev kho mob rau lub sijhawm, yuav ua li cas kho cov tshuaj kho mob thaum hloov mus rau Tsev Kho Mob?

Teb: Cov khoom siv yees duab kho mob hauv tsev kho mob thiab tsev sib txawv, thiab qhov sib txawv ntawm irradiation sib txawv, yog li lub sij hawm irradiation kuj yuav txawv rau tib koob tshuaj. Yog tias tus neeg mob hloov los ntawm tsev kho mob phototherapy mus rau tsev kho mob hauv tsev, ua ntej nkag siab txog cov koob tshuaj irradiation tam sim no, tom qab ntawd txo cov koob tshuaj tam sim no los ntawm 20% raws li thawj koob tshuaj irradiation rau tsev kho mob, lossis nrog tus kws kho mob paub txog los tsim cov tshuaj kho mob hauv tsev.

36. Lub Tube ntawm Lub Tsev Kho Mob Kho Mob puas tuaj yeem siv txuas ntxiv?

Teb: Tsis yog. Cov raj fluorescent muaj ib lub neej ntev. Thaum siv, irradiation siv ntawm lub raj yuav maj mam txo thaum lub sij hawm siv nce. Nws feem ntau pom zoo kom hloov lub raj fluorescent thaum nws tau siv li ntawm 500 teev; txwv tsis pub, cov kev kho mob yuav raug cuam tshuam. Feem ntau, phau ntawv qhia yuav pom zoo lub sijhawm hloov lub raj. Koj tuaj yeem tiv tauj cov chaw tsim khoom tsis tu ncua rau kev ntsuas qhov hnyav thiab hloov raj. Nws yuav tsum raug sau tseg tias tom qab hloov lub raj, cov tshuaj kho mob yuav tsum raug txo kom tsawg li 80% ntawm cov koob tshuaj yav dhau los los tiv thaiv kev kub nyhiab vim qhov sib txawv loj ntawm irradiation siv ntawm cov raj tshiab thiab qub.

Clinically, ntau tus neeg mob tham txog vim li cas tsev kho mob hauv tsev tau zoo xyoo tas los tab sis tsis yog xyoo no tom qab rov tshwm sim. Qhov no yuav muaj feem cuam tshuam nrog qhov txo qis ntawm irradiation siv ntawm lub tshuab phototherapy raj. Cov neeg mob tuaj yeem kwv yees lub sijhawm siv lub raj raws li lawv cov koob tshuaj phototherapy tag nrho.

Yog tias nws yog ib lub tsev kho mob hauv tsev nrog lub teeb ci LED, nws qhov kev siv irradiation txo qis heev thiab tuaj yeem siv tau ntau txhiab teev.

37. Puas yog yuav tsum tau nyeem cov lus qhia ntawm cov cuab yeej kho mob ua ntej Tsev Kho Mob?

Teb: Nws yog qhov tsim nyog heev. Cov neeg mob yuav tsum ua tib zoo nyeem cov lus qhia ua ke ua ntej siv lub cuab yeej kho mob hauv tsev los ntawm lawv tus kheej thiab siv nws raws li cov lus qhia kom paub tseeb tias qhov kev kho mob zoo tshaj plaws, txo cov kev tsis zoo, thiab siv cov cuab yeej siv kho kom raug kom ntev nws lub neej kev pab.

38. Puas yog tsim nyog los tsim daim phiaj xwm kev kho mob nrog tus kws kho mob ua ntej tsev kho mob?

Teb: Yog. Lub tsev phototherapy yog ib txoj hauv kev uas cov neeg mob siv lub tsev kho mob hauv tsev los ntawm lawv tus kheej raws li kev qhia ntawm tus kws kho mob. Cov neeg mob yuav tsum ua raws li cov kev npaj khomob uas tau tsim los ntawm tus kws kho mob. Tus kws kho mob yuav tsim cov phiaj xwm kho mob raws li tus neeg mob cov tshuaj kho tam sim no thiab lwm yam kev txiav txim siab. Tsis tas li ntawd, cov neeg mob yuav tsum tau ua raws li lub tsev kho mob tsis tu ncua- thaum lub sij hawm kho mob hauv tsev kom paub tseeb tias qhov raug thiab ua tau zoo ntawm kev kho mob.

39. Puas yog yuav tsum tau them nyiaj rau kev noj zaub mov hauv tsev Phototherapy?

Teb: Yog. Thaum lub sij hawm phototherapy, ingesting ib tug loj npaum li cas ntawm photosensitive zaub mov yuav ua rau phototoxic tshua nyob rau hauv lub phototherapy cheeb tsam. Yog li ntawd, thaum lub sij hawm phototherapy, sim txo kom tsawg ntawm cov khoom noj photosensitive. Cov khoom noj uas muaj suab thaj muaj xws li Chenopodium album, Ziyun zaub, fig, av nkos, amaranth, shepherd's purse, radish, rape, mustard, beet, Indian lettuce, spinach, Salsola collina, purslane, chicory, buckwheat, pagoda tree flower, fungus, grapefruit, etc. phototherapy.

40. Cov tshuaj puas rau cov kab mob hauv qab xws li ntshav siab thiab ntshav qab zib muaj feem cuam tshuam hauv tsev Phototherapy?

Teb: Lawv yuav cuam tshuam. Ntau cov tshuaj nquag siv rau cov kab mob hauv qab no yog cov duab zoo nkauj, xws li diuretic hydrochlorothiazide, cov tshuaj hypoglycemic glipizide, thiab cov tshuaj mob plawv xws li captopril thiab nifedipine. Yog li ntawd, cov neeg mob uas tau txais kev kho mob phototherapy yuav tsum qhia rau lawv tus kws kho mob txog cov tshuaj uas lawv tab tom noj tam sim no kom tus kws kho mob tuaj yeem tsim cov phiaj xwm kev kho kom zoo. Yog tias muaj kev hloov kho rau cov tshuaj rau lwm yam kab mob, sib txuas lus nrog tus kws kho mob kom sai li sai tau los kho cov phiaj xwm kho mob kom haum.

41. Puas yuav tsum tau npog qhov muag thaum lub sij hawm kho mob?

Teb: Yog. Thaum lub sij hawm phototherapy, tus neeg teb xov tooj yuav tsum hnav tsom iav, thiab cov neeg mob kuj yuav tsum hnav tsom iav los yog npog lawv lub qhov muag. Ultraviolet rays tuaj yeem ua rau lub qhov muag puas, yog li kev tiv thaiv qhov muag yuav tsum tau ua. Yog tias kho cov kab mob ntawm daim tawv nqaij nyob ib ncig ntawm lub qhov muag, nco ntsoov khaws lub qhov muag kom nruj thiab tsis txhob ntsia ncaj qha ntawm lub teeb - emitting ib feem los yog raj ntawm lub tshuab phototherapy. Yog tias tus neeg mob yog menyuam yaus, kev kho mob yuav tsum tau ua nrog kev pab thiab nrog tus neeg saib xyuas kom paub tseeb tias lawv lub qhov muag kaw kom nruj thaum kho. Kev kho lub ntsej muag ntawm lub qhov muag yuav tsum tau ceev faj ntxiv.

42. Puas tsim nyog rau cov txiv neej los npog lawv qhov chaw mos thaum lub sij hawm kho?

Teb: Yog. Yog tsis muaj kev tiv thaiv, tus txiv neej qhov chaw mos tej zaum yuav ua rau muaj kev pheej hmoo ntawm kev loj hlob ntawm qog tom qab rov qab kho phototherapy nyob rau lub sij hawm ntev, yog li ntawd phototherapy tsis pom zoo. Cov ntaub ntawv qhia tias 14 tus txiv neej psoriasis cov neeg mob tau tsim cov qog nqaij hlav hauv qhov chaw mos tom qab kho PUVA [7]. Txawm hais tias PUVA tau hloov pauv los ntawm NB-UVB, rau qhov laj thawj kev nyab xeeb, kev kho duab thaij duab tseem tsis pom zoo rau cov txiv neej qhov chaw mos. Tsis muaj phototherapy contraindication rau poj niam lub qhov ncauj.

43. Puas tsim nyog rau cov poj niam los npog lawv Areolas thaum lub sij hawm kho mob?

Teb: Yog. Thaum lub sij hawm phototherapy, thaj chaw areola yuav tsum tau npog los yog siv tshuaj pleev thaiv hnub los tiv thaiv kev kub nyhiab.

44. Yuav ua li cas kom txo tau tshav ntuj tom qab Phototherapy?

Teb: Tom qab phototherapy, txo lub hnub raug los yog raug rau cov khoom siv teeb pom kev zoo, tshwj xeeb tshaj yog nyob rau hauv cheeb tsam phototherapy. Hnub tom qab kev kho mob ultraviolet, thaj chaw kho mob yuav tsum tsis txhob raug tshav ntuj ntxiv. Sim tsis txhob tawm mus. Yog tias kev tawm mus yog qhov tsim nyog, tsis txhob tawm mus thaum tav su thaum qhov ntsuas ultraviolet siab tshaj plaws, txo lub sijhawm siv sab nraum zoov; hnav khaub ncaws nrog kev tiv thaiv kev ua haujlwm, dav - cov kaus mom brimmed, thiab looj tsom iav dub; siv dav - spectrum tshuaj pleev thaiv hnub nrog lub hnub tiv thaiv yam tseem ceeb (SPF) > 15; thaum caij tsheb thauj mus los, zam qhov sab uas raug tshav ntuj; thiab sim zam kev sib cuag nrog cov khoom siv hluav taws xob.

45. Lub teeb lub cev yog dab tsi -txoj kev thaiv?

Teb: Lub teeb lub cev- thaiv txoj kev siv ntau yam khoom uas tiv thaiv hluav taws xob ultraviolet kom txo qis kev puas tsuaj ultraviolet rau tib neeg lub cev, suav nrog khaub ncaws, kaus mom, looj tsom iav dub, kaus, thiab lwm yam.

46. ​​Yuav tsum xaiv khaub ncaws dab tsi los tiv thaiv tshav ntuj?

Teb: Xaiv cov khaub ncaws uas muaj tshuaj tiv thaiv - ultraviolet txheej rau saum npoo los yog ua los ntawm cov khoom siv tiv thaiv -ultraviolet fiber ntau ntaub. Kev tiv thaiv - ultraviolet lub peev xwm ntawm cov khaub ncaws yog qhia los ntawm kev tiv thaiv ultraviolet (UPF). Qhov loj dua tus nqi UPF, qhov kev tiv thaiv muaj peev xwm zoo dua. Suav tus qauv yog: UPF> 30 thiab UVA transmittance < 5% hu ua ib qho khoom tiv thaiv -ultraviolet, cim li UPF30. Cov khoom tiv thaiv zoo tshaj plaws yog UPF> 50, cim raws li UPF50.

47. Hom tshuaj pleev thaiv hnub muaj dab tsi?

Teb: Raws li cov khoom xyaw sib txawv, cov tshuaj pleev thaiv hnub tuaj yeem muab faib ua cov tshuaj pleev thaiv hnub lub cev thiab tshuaj pleev thaiv hnub. Cov khoom xyaw nquag hauv cov tshuaj pleev thaiv hnub tuaj yeem xaiv tau nqus ultraviolet rays kom ua tiav lub hnub tiv thaiv. Cov khoom xyaw nquag hauv cov tshuaj pleev thaiv hnub lub cev feem ntau yog cov tshuaj opaque uas tsis tuaj yeem nqus tau ultraviolet rays tab sis tuaj yeem cuam tshuam lossis tawg. Nyob rau hauv xyoo tas los no, kev sib xyaw ua ke ntawm kev siv tshuaj lom neeg thiab tshuaj pleev thaiv hnub lub cev tau dhau los ua ntau yam.

Tsis tas li ntawd, muaj dav - spectrum sunscreens thiab dej - cov tshuaj tiv thaiv tshav ntuj. Thaum lub wavelength tseem ceeb ntawm cov khoom siv tshuaj pleev thaiv hnub spectrum ntau dua los yog sib npaug rau 370nm, cov khoom tuaj yeem sau npe tias muaj qhov dav -spectrum tshuaj pleev thaiv hnub. Txoj kev ntsuas dej tiv thaiv rau cov tshuaj pleev thaiv hnub yog siv cov tshuaj pleev thaiv hnub rau tib neeg cov tawv nqaij thiab tom qab ntawd txiav txim siab nws tus nqi SPF tom qab 40min lossis 80min rov ua dej rau hauv dej (kev ntsuas dej tsis haum). Dej- cov tshuaj tiv thaiv tshav ntuj yuav tsum tau siv rau hauv cov xwm txheej xws li kev ua si sab nraum zoov tawm hws, ua haujlwm hauv qab dej, lossis da dej hiav txwv.

48. SPF ntawm Sunscreen txhais li cas?

Teb: Cov tshuaj pleev thaiv hnub muaj npe nrog SPF15, SPF30, thiab lwm yam SPF yog cov ntawv luv ntawm Sun Protection Factor, uas ntsuas lub peev xwm ntawm cov tshuaj pleev thaiv hnub tiv thaiv kom tiv thaiv tshav ntuj. Qhov loj dua tus nqi SPF, qhov kev tiv thaiv zoo dua. SPF yog txhais raws li qhov piv ntawm UVB irradiation koob tshuaj uas yuav tsum tau los tsim qhov tsawg kawg nkaus erythema ntawm daim tawv nqaij qhov chaw uas cov tshuaj pleev thaiv hnub yog siv rau irradiation koob yuav tsum tau rau ntawm daim tawv nqaij ib txwm. Qhov loj dua qhov tsawg kawg nkaus erythema koob tshuaj tom qab siv tshuaj pleev thaiv hnub, qhov loj dua qhov piv, thiab qhov zoo dua lub hnub tiv thaiv nyhuv. Yog li ntawd, tus nqi SPF loj dua qhia tau tias muaj kev tiv thaiv lub hnub zoo dua.

49. PA ntawm Sunscreen txhais li cas?

Teb: PA sawv cev rau qib UVA tiv thaiv qib (Kev Tiv Thaiv UVA, PA) ntawm cov khoom tiv thaiv hnub ci, txheeb xyuas raws li UVA tiv thaiv yam (Protection Factor of UVA, PFA) ntawm cov khoom tiv thaiv hnub ci. PFA yog qhov piv ntawm qhov tsawg kawg nkaus cov xim tsaus nti (MPPD) xav tau rau daim tawv nqaij tiv thaiv los ntawm cov khoom tiv thaiv hnub ci rau cov tawv nqaij uas tsis muaj kev tiv thaiv. Kev sib raug zoo ntawm PFA thiab PA yog: PFA <2 qhia tias tsis muaj kev tiv thaiv UVA; PFA 2 - 3 yog cim li PA+; PFA 4 - 7 yog PA++; PFA Ntau dua lossis sib npaug rau 8 yog PA+++.

50. Yuav ua li cas thiaj xaiv tshuaj pleev thaiv hnub tom qab tsev Phototherapy?

Teb: Tsis tas yuav tsum ua qhov muag tsis pom kev tiv thaiv lub hnub ci siab thaum xaiv cov tshuaj pleev thaiv hnub. Nws yuav tsum raug xaiv raws li lub sij hawm raug txhua hnub. Rau cov neeg uas feem ntau ua haujlwm sab hauv tsev, tshuaj pleev thaiv hnub nrog SPF nyob ib puag ncig 10 thiab PA + tuaj yeem xaiv tau; rau cov neeg ua haujlwm sab nraum zoov, tshuaj pleev thaiv hnub nrog SPF nyob ib puag ncig 20 thiab PA++ yog qhov tsim nyog. Nws tsis pom zoo rau cov neeg mob phototherapy kom raug rau lub hnub ntev. Yog tias tus neeg mob tuaj yeem ua haujlwm nyob rau hauv tshav ntuj muaj zog lossis da dej hauv hiav txwv, yuav tsum xaiv cov dej - tshuaj tiv thaiv tshav ntuj nrog SPF Ntau dua lossis sib npaug li 30 thiab PA+++. Nws yuav tsum raug sau tseg tias tus nqi SPF siab dua tsis tas yuav zoo dua. Kev siv ntau heev ntawm -SPF tshuaj pleev thaiv hnub...