Erythema migrans and erythema multiforme both cause target- or bull’s-eye-shaped lesions. Erythema migrans is due to Lyme disease. Erythema multiforme is an immune-mediated hypersensitivity skin ...

NEW YORK — Because of their heterogeneity in appearance, drug-induced skin rashes are a common diagnostic challenge, but eruptions in skin of color, particularly those with a delayed onset, require a ...

Erythema multiforme is an immune-mediated skin condition that may develop inside the mouth. Oral symptoms can include lesions on the lips and blisters and erosions on the gums and palate. Various ...

Lyme disease can cause a rash that sometimes looks like a bullseye and usually appears within a week of the tick bite. While known for the bullseye rash, Lyme disease rashes can vary greatly in ...

Skin rashes can have many different causes, one of which is medications. The symptoms of drug-induced skin reactions can range from a mild itchy rash to more serious reactions, such as widespread ...

Urticaria affects both children and adults, with chronic cases more common in women, and often presents in emergency or dermatology settings. Conditions like vasculitic urticaria, erythema multiforme, ...