An exanthem is any eruptive skin rash that may be associated with fever or other systemic symptoms. Causes include infectious pathogens, medication reactions and, occasionally, a combination of both.

Allergic contact dermatitis: An immune system reaction that appears on the skin. It can occur a few days after exposure rather than right away. The rash may become infected, particularly if you ...

Skin (cutaneous) lymphomas often manifest as a skin rash. Although usually identified early, skin lymphomas can be mistaken for other skin conditions, delaying diagnosis. Non-Hodgkin's lymphoma (NHL) ...

Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota 55905, United States ...

Symptoms of an allergic reaction may include hives or an itchy skin rash, swelling of the face, lips or tongue, faintness, wheezing or troubled breathing. If you think you may be allergic to ...