Picture of Erythema Ab Igne
Erythema ab igne is a type of skin discoloration that results from prolonged exposure to infrared radiation. This photo depicts the abdomen of a woman who developed the condition after using a heating pad to relieve menstrual cramps. Use of heating devices and water bottles may also produce the characteristic skin markings.
Text Reference: American Osteopathic College of Dermatology: "Erythema Ab Igne"