There are many kinds of diseases that lead to acne in the hair, and you need to find the cause and treat it symptomatically. There are mainly the following methods: 1, the head sebaceous glands secretion, usually greasy hair do not pay attention to cleaning, airborne dust bacteria attached to the scalp, so that the follicular pore blockage bacterial infection and the formation of acne, you can use erythromycin ointment rub acne parts, pay attention to head cleanliness and hygiene at least twice a week wash your hair, oral cephalosporin capsules of antibiotics. 2, acne grows in the back of the hairline parts, red, swollen, above the white tip consider And wear the collar is too high, long time friction local causes follicle hole inflammation and formation, you can take oral rosmarinic acid capsule or tetracycline tablets, the affected area rub Bactroban ointment. Regardless of what causes the hair acne, it is recommended that during the treatment period need to pay attention to diet, spicy, fried food absolutely do not eat, keep enough sleep do not stay up late, help the recovery of the disease.