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Why does my skin itch and get a rash when I start to sweat?

1 doctor weighed in
Dr. Michael Fisher
Dermatology

In brief: Rash from sweating

Skin rash caused from sweating is also known as milaria or prickly heat.
Skin rash due to sweating usually occurs where there is more skin friction. It is especially seen in arms and underarms, neck and groins and between the legs. In adults aside from prickly heat, rash can be due to fungal disease.

In brief: Rash from sweating

Skin rash caused from sweating is also known as milaria or prickly heat.
Skin rash due to sweating usually occurs where there is more skin friction. It is especially seen in arms and underarms, neck and groins and between the legs. In adults aside from prickly heat, rash can be due to fungal disease.
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