Allergy: Poison Ivy, Oak, and Sumac Topic Guide
Poison Ivy, Oak, and Sumac: More than half the people in the United States are sensitive to poison ivy, poison oak, and poison sumac. If you are sensitive, you can develop an itchy, blistering rash ...
Rash A rash is a visible skin outbreak. Examples of noninfectious rashes include eczema, psoriasis, contact dermatitis, seborrheic dermatitis, rosacea, hives, and allergic dermatitis. Types of infectious rashes include ringworm, impetigo, scabies, herpes, chickenpox, and shingles. Rashes may be caused by fungi, viruses, bacteria, and parasites. Treatment depends upon the type of rash.
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