A rash or skin irritation can develop anywhere that skin folds exist on the body. These folds can trap heat, moisture, bacteria, and yeast. Combined with chafing, this leads to a condition called ...

Medically reviewed by William Truswell, MDMany over-the-counter creams work best for some armpit rashes.Contact dermatitis on your armpits is caused by exposure to skin irritants or allergens.Shaving ...