Cystic acne results from the same process that causes all acne—the clogging of pores with excess oil and dead skin cells—but ...

Cystic acne occurs very deep under the skin's surface ... It could also increase your risk of infection. Causes of skin tags: “They often occur in areas of friction, like by the neck, underarms ...

It was a sebaceous cyst, which had become infected when she popped it ... They can occur as a result of a ruptured follicle linked to acne, an injury to those areas or for no clear reason at ...