There are many potential causes of armpit rash. Friction Dermatitis. Friction dermatitis is a common rash.The friction created by skin rubbing on skin or clothing, also called chafing, can cause ...

An armpit rash may be due to chafing, eczema, ... People may also experience chafing during the spring and summer months because they sweat more in the heat, and moist skin is quicker to irritate.

There are many potential causes of armpit rash. Friction Dermatitis. Friction dermatitis is a common rash.The friction created by skin rubbing on skin or clothing, also called chafing, can cause ...

You could also try layering a bit of petroleum jelly on top of sensitive areas, dusting anti-chafing powder into your shoes, or using antiperspirant to prevent sweat and armpit chafing, he adds.

Additionally, excessive moisture on the skin—either sweat or rain—can exacerbate the effects of chafing, Engelman explains, which means long runs in steamy or rainy conditions may be a recipe ...

Frustrated by irritating rubs in all the wrong places – thighs, armpits, even nipples? Here’s how to prevent chafing and stop friction from ruining your run.

Contact dermatitis: The most common cause of itchy armpits, per Dr. Shamban, this happens when something touches your skin (i.e. a deodorant, fragrance, or detergent) and causes irritation.

We need sweat to help us regulate our body temperature, said Dr. Amy McClung, a dermatologist with U.S. Dermatology Partners in Austin. "It's the way we cool off when our body gets hot and our ...