Q:

Why do pimples itch?

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Quick Answer

The itching is a result of yeast that has multiplied in the hair follicles where pimples grow. Pimples may itch and erupt into bright red sores or a series of bumps as a result of a condition called pityrosporum folliculitis, according to the American Osteopathic College of Dermatology.

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Full Answer

The yeast that causes itching in and around pimples and skin rashes is found on everyone's skin. In most cases, the yeast does not cause infection or discomfort, according to the American Osteopathic College of Dermatology. The pimples typically are uniform in size, and they commonly appear on the upper chest and upper back. They primarily affect young to middle-aged male and female adults.

Oils and greasy lotions and sunscreens can cause the yeast to proliferate, according to the American Osteopathic College of Dermatology. Stress, fatigue, complications of diabetes and tight-fitting clothing in hot and humid environments also contribute to the production of yeast on the skin.

A person who is overweight, sweats profusely or wears tight clothing may be more prone to itchy yeast growth on the skin, according to the American Osteopathic College of Dermatology. Medications such as oral steroids and oral contraceptive pills also contribute to yeast production on the skin.

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