• Rash - Learn about rash causes, symptoms, diagnosis and treatment. Common skin rashes include poison ivy, hives, shingles, eczema, contact dermatitis, ringworm, psoriasis and impetigo.
• Hives - Read about hives (urticaria) causes (allergy, stress), rash symptoms (skin welts, raised red itchy bumps) and treatment. Dermatographism and swelling (angioedema) may accompany hives.
• Poison Ivy - Read about poison ivy, oak and sumac (plants that cause an itchy skin rash and blisters) contact dermatitis symptoms, treatment, prevention and facts (it isn't contagious).

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