Heat Rash (cont.)

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How is heat rash diagnosed?

The diagnosis of heat rash or prickly heat is made by physical examination. Knowing that the rash appears during sweating or heat, appreciating the location on the body (in skin creases or where clothes fit tightly) and seeing what the rash looks like is enough to make the diagnosis. As with many rashes, the health care professional may look at the involved skin and because of previous experience, immediately make the diagnosis.

What is the treatment for heat rash?

Treatment for heat rash include home remedies such as over-the-counter creams and sprays. Medical treatment for heat rash may involve antibiotics if the sweat glands become infected.

Home remedies for heat rash

Heat rash often resolves on its own when the skin cools. If the prickly sensation persists, calamine lotion may be helpful. Some clinicians also recommend over-the-counter hydrocortisone creams or sprays.

Some people suggest that vitamin A or vitamin C creams may be effective to treat heat rash, and while there is no hard evidence that they work, there is little harm in these treatments.

Medical treatment for heat rash

Heat rash or prickly heat resolves on its own once the skin cools, but on occasion the sweat glands can become infected. The signs of infection include pain, increased swelling, and redness that does not resolve. Pustules may form at the site of the rash. This infection occurs because bacteria have invaded the blocked sweat gland. Antibiotic treatment may be required. Chronic and recurrent heat rash may need to be treated by a health care professional or dermatologist (skin specialist).

Medically Reviewed by a Doctor on 5/22/2014

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