Acne on the neck may be caused by acne, folliculitis and other diseases, which need to be treated with topical medications and oral medications according to different causes. 1. Acne: It can be treated with topical medications such as adapalene gel, tazarotene gel, benzoyl peroxide gel, fusidic acid cream and so on as prescribed by the doctor. When the inflammatory reaction is obvious, oral doxycycline, minocycline and other drugs can be used to treat, severe acne also need to take oral isotretinoin and other drugs for treatment. 2. Folliculitis: caused by bacterial infection, can also lead to acne at the neck, can follow the doctor’s instructions for external use of mupirocin ointment and other drugs for treatment. If the patient has the symptoms of neck acne, it is recommended to consult a doctor in a timely manner to clarify the cause of the disease under the guidance of the doctor’s medication.