Dear Dr. Roach • My sister broke out in a full-body rash of red, itchy blotches, and her doctor told her it was erythema multiforme. It is rare, and he sees only a few cases per year. Could you ...

Erythema multiforme (EM) represents a spectrum of acute, immune-mediated mucocutaneous conditions that predominantly affect the skin and, in many instances, the oral mucosa. Typically presenting with ...

Rashes in kids are rarely a reason for concern. Treatments can help relieve the itch, and you can talk with a doctor to rule out any serious causes. Share on Pinterest Kwangmoozaa/Getty Images Skin ...

Erythema multiforme. Although most cases of erythema multiforme do not have bullae or crusts, some do. Erythema multiforme major is usually characterized by fewer but larger lesions that tend to have ...

SULFONAMIDE therapy has always held an important place in pediatrics. Hypersensitivity reactions to this group of drugs have been seen frequently in the past. Sulfamethoxypyridazine,‡ a newer ...

Lyme disease can cause a rash that often looks like a bullseye pattern. The erythema migrans rash appears in 70% to 80% of people infected with Lyme disease. Lyme disease is not spread from person to ...