Riehl melanosishttps://en.wikipedia.org/wiki/Riehl_melanosis
Riehl melanosis ke mofuta oa dermatitis ea ho kopana, ho qala ka ho hlohlona, ​​erythema le pigmentation e jalang butle-butle eo, ka mor'a ho fihla bohōleng bo itseng, e fetohang e eme. Ho pepeseha ha letsatsi ka mor'a tšebeliso ea litlolo tse ling kapa litlolo ho ka 'na ha baka sesosa sa lefu lena.

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      References Riehl Melanosis 32491369 
      NIH
      Riehl melanosis hangata e tsejoa e le pigmented contact dermatitis. Ke mofuta oa boemo ba letlalo bo bakoang ke ho hanana le lintho tse itseng, hangata bo hlahisoang ke monko o monate le lintho tse ling tse fumanoang lihlahisoa tsa litlolo. Ho sa tsotellehe ho khetholloa e le mofuta oa dermatitis, Riehl melanosis e bontša liphetoho tsa mebala ea letlalo letlalong, ka matšoao a fokolang feela a ho teneha. E atile haholo ho batho ba nang le letlalo le lefifi. Lipatlisiso tsa morao-rao li lekotse katleho ea mid-fluence QSNY 1064-nm kalafo ea laser bakeng sa ho sebetsana le ho teba ha mmala o amanang le Riehl melanosis. Phuputso e 'ngoe e ile ea kopanya mekhoa ea phekolo e fapaneng, ho akarelletsa le low-fluence 1064-nm Q-switched Nd: YAG laser, hydroquinone cream, le oral tranexamic acid, e leng se ileng sa fella ka ntlafatso e kholo ho bakuli ba bangata.
      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 ke mofuta oa boemo ba letlalo bo bakoang ke ho kopana le lintho tse itseng tse thobang le ho pepesehela mahlaseli a letsatsi. E lebisa ho 'mala o moputsoa o ntseng o tsoela pele oa letlalo, o ka amang bakuli haholo kelellong le' meleng. Le hoja sesosa se tobileng sa Riehl's melanosis se ntse se sa tsejoe, lipatlisiso tse teng li bontša kamano e matla le ho pepeseha ha allergen. Bakeng sa phekolo, meriana ea setso le laser therapy li 'nile tsa lekoa, hangata hammoho le tšebeliso ea li-bleaching agents tse sebelisoang letlalong. Kalafo ea Laser, haholo-holo e sebelisang Q-switched Nd:YAG laser, e bontšitse liphetho tse ts'episang bakeng sa ho phekola Riehl's melanosis. Ho kopanya mekhoa e fapaneng ea phekolo ho entse hore ho be le liphello tse ntle.
      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.