Riehl melanosishttps://en.wikipedia.org/wiki/Riehl_melanosis
Riehl melanosis wani nau'i ne na lamba dermatitis, yana farawa da pruritus, erythema, da pigmentation wanda a hankali ya yada wanda bayan ya kai wani matsayi, ya zama a tsaye. Fitowar rana bayan amfani da wasu turare ko man shafawa na iya haifar da cutar.

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      References Riehl Melanosis 32491369 
      NIH
      Riehl melanosis sau da yawa ana kiransa pigmented dermatitis lamba. Wani nau'in yanayin fata ne da ke haifar da rashin lafiyar jiki, yawanci yana haifar da ƙamshi da sauran abubuwan da ake samu a cikin kayan kwalliya. Duk da cewa an rarraba shi azaman nau'in dermatitis, Riehl melanosis yana nuna canjin launi a cikin fata, tare da ƙananan alamun fushi. Ya fi kowa a cikin mutane masu launin fata masu duhu. Binciken da aka yi kwanan nan ya bincika tasirin mid-fluence QSNY 1064-nm maganin laser don magance zurfin launi mai alaƙa da Riehl melanosis. Wani binciken kuma ya haɗu da magunguna daban-daban, ciki har da low-fluence 1064-nm Q-switched Nd: YAG Laser, hydroquinone cream, da tranexamic acid na baka, wanda ya haifar da gagarumin ci gaba ga yawancin marasa lafiya.
      Riehl melanosis (RM), commonly called pigmented contact dermatitis, is considered an acquired form of allergic contact dermatitis, typically to fragrance and other ingredients of cosmetic products. Although it is considered as a dermatitis, it presents clinically with hyperpigmentation over the face and shows pigment incontinence with minimal eczematous changes on histology. The condition is more commonly seen in dark-skinned people, causing an important psychosocial impact. A recent study showing the higher effectiveness of mid-fluence QSNY 1064-nm laser in targetting the deep pigmentation of RM has also been conducted. Another study used a combination of therapies to include low-fluence, 1064-nm, Q-switched Nd: YAG laser, hydroquinone cream, and oral tranexamic acid, with the majority of patients experiencing significant improvement.
       Research Advances in the Treatment of Riehl’s Melanosis 37168093 
      NIH
      Riehl's melanosis wani nau'in ciwon fata ne da ake samu ta hanyar saduwa da wasu abubuwan da ke haifar da alerji da bayyanar hasken rana. Yana haifar da sauri, launin toka-kasa-kasa mai launin fata na fata, wanda zai iya rinjayar marasa lafiya sosai a hankali da kuma jiki. Yayin da ainihin dalilin Riehl's melanosis har yanzu ba a san shi ba, binciken da ake yi yana nuna alaƙa mai ƙarfi tare da bayyanar rashin lafiyan. Don maganin, an gwada magungunan gargajiya da na laser, sau da yawa tare da yin amfani da magungunan bleaching da aka shafa a fata. Magungunan Laser, musamman ta amfani da Q-switched Nd:YAG Laser, ya nuna sakamako mai ban sha'awa don magance Riehl's melanosis. Haɗa hanyoyin magance daban-daban suna haifar da sakamako mai kyau.
      Riehl's melanosis (RM) is a contact photodermatitis, with fast progressive gray-brown skin pigmentation as the main manifestation, which can seriously affect the psychology and physiology of patients. Currently, although the etiological factors of Riehl's melanosis is still be unknown, the existing literature proves clearly the cause of it is related to the contacting with suspected allergens. For decades, there has been no standard method for the treatment of RM, but with both conventional drug therapy and laser therapy having been attempted. Topical application of bleaching agents is mainly used as an auxiliary treatment modality. The laser treatment modality remains a hot spot, among which Q-switched Nd:YAG laser is well received for RM. Positive outcomes have been achieved by the combined treatment modalities attempted in recent years also achieve positive outcomes.