Also known as warmer erythema, this condition is characterized by the appearance of a hyperpigmented reticulum on the skin shortly after thermal irradiation. In the days following the triggering event, the reddened areas may take on a brownish color that tends to fade gradually. In some cases, at the eruption site, patients may experience itching or a burning sensation.
Diagnosis of heat rash is based on physical examination; rarely, biopsy is needed. The foundation of the management of erythema ab igne is the removal of the triggering cause, represented by the thermal source (sauna, steam, radiator, hot water bottle, etc.). The treatment involves the use, if necessary, of drugs to help resolve or alleviate the skin signs. Mild cases of heat rash will resolve over months, while more advanced cases can persist for years or remain permanently. If the lesions resulting from erythema ab igne are visually disturbing, the doctor may indicate treatment with 5-fluorouracil, tretinoin, or laser therapy to improve the appearance of the affected area.
, electric heaters, steam, radiator, hot water bottle and electric blankets.
The clinical aspect is characteristic: erythema ab igne initially manifests itself with the appearance of reddened areas which, in the days following the triggering event, draw a pattern on the skin. The erythematous areas can take on a brownish color that tends to fade into course of the days following the triggering event.
