It could also increase your risk of infection. Causes of skin tags ... These might be some of the most commonly popped bumps—but keeps your hands off if you can. Causes of blackheads and ...
But when pimple-like bumps pop up in unusual places ... hair follicles get blocked and nearby sweat glands get clogged and infected in areas where skin touches skin. This blockage creates large ...
Allergic reactions may also pop up on your scalp ... Redness or inflammation: The area around the bumps might appear red or swollen. Scaling or flaking: Conditions like seborrheic dermatitis ...