Heat Rash Topic Guide
Heat Rash: Heat rash (prickly heat) is a red or pink rash caused by plugged sweat glands. Symptoms include welts, hives (urticaria), raised red bumps, or itching. Treatment can include washing the area with mild soap and rinsing. See a doctor if it does not improve. To prevent heat rashes, wear light, absorbent fabric, and stay hydrated.
Hives and Angioedema Hives is a sudden allergic skin reaction. Hives are raised reddish bumps that cause severe itching. Angioedema is similar to hives but the welts are larger and involve a deeper layer in the skin. Allergies, insect stings and bites, stress, exercise, and infections are common causes of hives and angioedema. In mild cases, no treatment is needed. Severe reactions should be treated by a health-care provider.
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