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. Treatmen...learn more »

Biological weapons include any organism (such as bacteria, viruses, or fungi) or toxin found in nature that can be used to kill or injure people. (Toxins are po...learn more »

Discover the causes, symptoms, treatment, risk factors, and tests for dandruff, also known as seborrhea or seborrheic dermatitis. Several shampoos and home reme...learn more »