Acne under the mouth can be gotten rid of by topical medication, use of acne needles, and regular cleansing under a doctor’s supervision. 1. Topical medication: acne under the lips can be treated with topical erythromycin ointment and retinoic acid ointment under the guidance of a doctor. Usually, it can make the skin return to the normal state as soon as possible and achieve the purpose of getting rid of acne. 2. Use of acne needles: acne needles can also be used for cleaning, which can thoroughly clean the dirt in the pores and help to improve the situation of clogged pores and so on. 3. Regular cleansing: You need to do a good job of facial cleansing on a regular basis, and choose a cleanser with good cleaning ability. At the same time, you also need to add moisture to the skin in a timely manner, can also be conducive to skin improvement.