The rash can vary in appearance based on a person's skin tone. This article will discuss what a heat rash looks like on dark skin tones, treatment options, and when to contact a healthcare provider.

Heat rash is something that adults, children and infants can experience when sweat gets trapped underneath the skin, according to the Mayo Clinic.

Heat rash, also known as prickly heat, occurs when sweat glands become clogged (thereby trapping sweat in the deeper levels of skin), usually due to humid climates, hot weather and excessive sweating.

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Staying out in the heat can cause a skin irritation called heat rash — a red cluster of pimples or small blisters on your skin. It is caused by excessive sweating during hot, humid weather.

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"Heat rash is common during hot weather," the UK health service said on X, formerly Twitter. "It is uncomfortable - but usually harmless - and it usually gets better on its own after a few days. "Here ...

“Heat rash occurs when the openings of the sweat glands become clogged and irritated," Dr. Elizabeth Tanzi, Founder & Director of Capital Laser & Skin Care, explains to me over email.

How does heat rash happen? Heat rash is caused by a blockage of the sweat duct in the skin, said Austin dermatologist Dr. Miriam Hanson, according to Sanova Dermatology.

Heat rash is most often seen in the folds of the skin of the neck, the groin area and in elbow and knee creases. A heat rash may also come up on areas where clothing hugs the skin tightly, such as ...