People should not pop, scratch or pick ingrown hairs. If they do so, they risk infecting the hair and damaging and scarring their skin. According to WebMD, the recommended treatment is to let the ingrown hair disappear on its own.
Doctors can treat ingrown hairs, whether they are merely annoying or infected, by using a needle or scalpel to discharge the hair, according to WebMD. Prescription medication can help with swelling and discoloration, and antibiotics via mouth or skin can help with infections. Shorter hair is more prone to becoming ingrown, so people with longer hair in affected areas are less likely to develop ingrown hairs.