The most common causes of red rashes all over the body are chickenpox, German measles and taking certain drugs, explains Dr. Chris Iliades on Everyday Health. Skin rashes are typically swollen or irritated, and they are ... More »

An itchy rash on the torso can be caused by many medical conditions, such as chickenpox and eczema, or a reaction to a harsh soap or allergies, according to Healthline. Because skin rashes occur from a variety of factors... More » Health Pain & Symptoms

Common causes of leg rash include allergic reactions, inflammation, infection, autoimmune process, or parasite or insect bites, according to Healthgrades. Other potential causes include varicose veins, heat, stress, meth... More » Health Conditions & Diseases Skin Conditions

Treatment of rashes depends on the cause of the rash, reports Everyday Health. Rashes such as those caused by German measles or chicken pox require management of the accompanying fever, while hives simply require antihis... More » Health Conditions & Diseases Skin Conditions

Infections that cause red spots under the skin include acne, eczema, measles, chicken pox, impetigo, Kawasaki disease, fifth disease and scarlet fever, according to Healthline. Other infections include seborrheic dermati... More » Health Conditions & Diseases Skin Conditions

Various conditions, such as rashes caused by contact dermatitis, may cause red dots to appear on the stomach. Scarlet fever and allergic reactions to food and chemicals are possible explanations, notes Healthgrades, and ... More » Health Conditions & Diseases Skin Conditions

There are many potential causes of a red rash with blisters, including burns, genital herpes, oral herpes, shingles, allergic eczema and contact dermatitis, according to Healthline. Blisters with a red rash can also aris... More » Health Conditions & Diseases Skin Conditions