Ukwelashwa Kokukhanya Okubomvu (i-RLT) kungaba usizo ekwelapheni i-Post-inflammatory Hyperpigmentation (PIH). I-Hyperpigmentation ivame ukwenzeka ngemva kokuba ukuvuvukala noma ukulimala esikhumbeni sekupholile, ngokuvamile ngoba ama-melanocyte esikhumbeni akhiqiza i-melanin eningi kakhulu.
Ukwelashwa Kokukhanya Okubomvu kungena ezingqimbeni ezijulile zesikhumba ngobude baso obuqondile bokukhanya (ngokuvamile ama-nanometer angu-630-650) ukuze kukhuthazwe inqubo yokulungisa amangqamuzana esikhumba, kuthuthukiswe ukujikeleza kwegazi futhi kwandiswe ukukhiqizwa kwe-collagen. Kuphinde kunciphise ukuvuvukala kwesikhumba futhi kukhuthaze ukuphulukiswa kwesikhumba. Le miphumela isiza ekunciphiseni ukubonakala kwe-hyperpigmentation, ikakhulukazi ukushintsha kombala okuhambisana ne-hyperpigmentation yangemva kokuvuvukala.
I-Hyperpigmentation Emuva Kokuvuvukala (i-PIH) ukuqongelela kwe-melanin eningi esikhumbeni ngemuva kokuphulukiswa kwesimo sesikhumba esivuvukele noma ukulimala, okungaholela ekufiphaleni kwesikhumba noma ekwakhekeni kombala oshintsha umbala. Ngokuvamile kwenzeka ngemva kokuba isikhumba sibhekane nohlobo oluthile lokuvuvukala, njenge-acne, i-eczema, ukuphulukiswa kwamanxeba, ukushiswa yilanga, noma okunye ukucasuka kwesikhumba.
Kuyini i-hyperpigmentation yangemva kokuvuvukala
Izimbangela zokwakheka kwe-hyperpigmentation ngemuva kokuvuvukala:
1. Impendulo yokuvuvukala: Uma kwenzeka ukuvuvukala esikhumbeni, amangqamuzana esikhumba (ikakhulukazi ama-melanocyte) ayavuselelwa ukuze akhiqize i-melanin eyengeziwe. Ukuba khona kokuvuvukala kukhuthaza ama-melanocyte ukuthi akhiqize inani elikhulu le-melanin.
2. Ukulimala Kwesikhumba: Noma yiluphi uhlobo lokulimala kwesikhumba, okuhlanganisa induna, ukusha noma ukusikeka, kungaholela ekumisweni kwe-melanin ngokweqile endaweni ethile. Lokhu kungenxa yokuthi ngesikhathi senqubo yokuphulukiswa, isikhumba siyalungiswa futhi sakhiwe kabusha, futhi i-melanin eyengeziwe ingakhiqizwa phakathi nale nqubo.
3. Ukuvezwa yi-UV: Ukuvezwa yi-UV kungenza kube kubi kakhulu ukuguquka kwesikhumba, ikakhulukazi ezindaweni zesikhumba esezivele zonakele, futhi imisebe ye-UV ingakhuthaza ukukhiqizwa kwe-melanin, okwenza ukuguquka kwesikhumba kube sobala kakhulu.
Izici:
Umbala noma Ithoni Yesikhumba Engalingani: Ngokuvamile kuvela njengamabala amnyama noma ansundu esikhumbeni, ngokuvamile amnyama kunombala wesikhumba ozungezile.
Ukusabalala Okungajwayelekile: Umbala wesikhumba uvame ukwakheka eduze kwezindawo lapho ukuvuvukala kwasekuqaleni kungaqala khona futhi kungavela ebusweni, esifubeni, emhlane, emahlombe noma emaphethelweni.
Ingabe i-hyperpigmentation iyisilonda?
Amabala amnyama abangelwa yi-hyperpigmentation yangemva kokuvuvukala avame ukudidaniswa namabala; nokho, lawa mabala amnyama ahluke kakhulu kumabala. Lapho i-dermis, noma izingqimba ezijulile zesikhumba, yonakele, i-collagen matrix esikhumbeni iyazilungisa ngokungajwayelekile, ishiye amabala ahlala isikhathi eside emzimbeni. Amabala avame ukuphakama (hypertrophic) noma acindezeleke (dystrophic), kanti amabala amnyama abangelwa yi-hyperpigmentation yangemva kokuvuvukala ayisicaba esikhumbeni. Ngaphezu kwalokho, amabala amaningi abonakala ekhanya kunombala wesikhumba, kodwa lokhu akuvamile.
Nakuba i-hyperpigmentation iphela yodwa ngemva kokuvuvukala, nakuba lokhu kungathatha isikhathi, izibazi zihlala isikhathi eside. Ezindaweni ezine-hyperpigmented, i-dermis yesikhumba ayonakalanga empeleni futhi i-melanin eningi iyingxenye yenqubo yokuphulukiswa. Cabanga ngendlela isikhumba esisabela ngayo ku-UV (ukukhanya kwelanga): i-melanin ikhiqizwa ukuze yenze isikhumba sibe mnyama futhi isivikele ekulimaleni kwe-UV, njengoba imibala emnyama imunca ukukhanya okuncane. Endabeni ye-hyperpigmentation ngemva kokuvuvukala, i-melanin eningi ivimbela ukulimala okwengeziwe kwe-UV.
Ukwelashwa kwe-hyperpigmentation ngemuva kokuvuvukala
Nakuba i-hyperpigmentation ngemuva kokuvuvukala iyingxenye yenqubo yokuphulukisa isikhumba, amabala amnyama aqinile angaba yinto ecasulayo noma engamukeleki. Kodwa-ke, kunemikhiqizo eminingi engasiza ekuqedeni amabala amnyama. Ukwelashwa okuvamile kwamabala amnyama ukusetshenziswa kwe-retinol, isithako esitholakala kuma-creams amaningi nama-serum, okwandisa ukukhiqizwa kwe-collagen kanye nokuvuselelwa kwamaseli. Abantu abaningi abasebenzisa imikhiqizo ye-retinol babhekana nokubomvu nokuqhekeka kwesikhumba, okuwuphawu lokucasuka okuvela kumkhiqizo kanye nesizathu esenza abanye abantu bayeke ukwelashwa kwe-retinol. Le mikhiqizo nayo ibiza kakhulu futhi ingathatha izinsuku ezingafika kwezingama-90 ukuqala ukukhombisa imiphumela.
Indlela Ukwelashwa Kokukhanya Okubomvu Okuthuthukisa Ngayo Ukushisa Kwesikhumba
Ukwelashwa ngokukhanya okubomvu kwelapha izinkinga eziningi zesikhumba okuhlanganisa induna, imibimbi, izibazi kanye nokulimala kwelanga. Lokhu kwelashwa kusebenzisa ubude obuqinile bokukhanya okubomvu ukukhuthaza ukukhiqizwa kwamandla eseli, okudala uchungechunge lwezimpendulo zokusheshisa inqubo yokuphulukisa yemvelo. Ukwanda kokujikeleza kwegazi kusiza ukuletha abaxhumanisi bokuvuvukala ezicutshini ezonakele ukuze kulwiwe nokuvuvukala ngokushesha. Ngaphezu kwalokho, ukwelashwa ngokukhanya okubomvu kwandisa ukukhiqizwa kwe-collagen, ingxenye eyinhloko ye-matrix yamangqamuzana esikhumba sethu esiza ekugcineni isakhiwo kanye nokuqina.
Sonke sinesikhumba esihlukile, ngakho-ke kubalulekile ukuthi ukwelashwa kwesikhumba kube okuguquguqukayo futhi kwenziwe ngokwezifiso. Ukwelashwa kokukhanya okubomvu kungenziwa ngokwezifiso kumuntu ngamunye, kusetshenziswa ingxube yamaza ahlukene, ama-wattage (amandla), kanye nokusetshenziswa kokukhanya okuqhubekayo noma okushaywayo. Ngaphezu kwalokho, imibhede yokukhanya (njenge-Umbhede Wokwelapha Okhanyayo Obomvu Wase-MERICAN m4n) ingalapha wonke umzimba ngesikhathi esisodwa. Lokhu kusho ukuthi ungalungisa izindawo eziningi zokungapheleli kwesikhumba ngesikhathi esisodwa.
Ukwelashwa kokukhanya okubomvu kuyindlela yokwelapha engahlaseli engabangeli ukucasuka nokuqhekeka abantu abaningi ababhekana nakho ngemikhiqizo ye-retinoid. Ngaphezu kwalokho, abantu abaningi baqala ukubona imiphumela emasontweni ambalwa okuqala okwelashwa.