Erythema ab ignehttps://en.wikipedia.org/wiki/Erythema_ab_igne
Erythema ab igne nyaéta kaayaan kulit anu disababkeun ku paparan panas jangka panjang (radiasi infra merah (infrared radiation)). Paparan radiasi termal anu berkepanjangan dina kulit tiasa nyababkeun ngembangkeun erythema retikulat (reticulated erythema), hiperpigmentasi (hyperpigmentation), keratolisis (scaling) sareng telangiektasia (telangiectasias) di daérah anu kapangaruhan. Sababaraha urang tiasa ngawadul ngeunaan gatal (itching) hampang sareng sensasi ngaduruk.

Jenis sumber panas anu béda-béda tiasa nyababkeun kaayaan ieu sapertos:
- Aplikasi ulang botol cai panas (hot water bottle), selimut pemanas (heating blanket) atanapi bantalan panas (heat pad) pikeun ngubaran nyeri kronis.
- Paparan terus‑terusan kana korsi mobil anu dipanaskeun (heated car seat), pamanas angkasa (space heater), atanapi hawu (fireplace). Paparan anu terus‑terusan atanapi berkepanjangan ka pamanas (heater) mangrupikeun panyabab umum dina jalma manula.
- Bahaya padamelan tukang perak sareng perhiasan (silversmiths and jewellers) (beungeut kakeunaan panas), tukang roti sareng koki (bakers and chefs) (leungeun, raray).
- Nempatkeun komputer laptop dina pingping (thigh) (laptop‑induced erythema ab igne).

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References Erythema Ab Igne 30855838 
NIH
Erythema ab igne mangrupakeun ruam disababkeun ku paparan terus‑terusan ka panas atawa radiasi infrared. Ieu sering kajantenan tina padamelan atanapi nganggo bantalan pemanasan. Perawatan utama nyaéta ngaleungitkeun sumber panas. Scarring bisa luntur kana waktu, tapi bisa ninggalkeun hyperpigmentation permanén atawa scarring. Pangobatan sapertos tretinoin atanapi hydroquinone tiasa ngabantosan persistent hyperpigmentation.
Erythema ab igne is a rash characterized by a reticulated pattern of erythema and hyperpigmentation. It is caused by repeated exposure to direct heat or infrared radiation, often from occupational exposure or the use of heating pads. The primary treatment of this disease entity is the removal of the offending heat source. The resulting abnormal pigmentation of affected areas may resolve over months to years; however, permanent hyperpigmentation or scarring may persist. Treatments for hyperpigmentation, such as topical tretinoin or hydroquinone, can be useful in treating persistent hyperpigmentation.