What’s the best medicine for butt acne?

Acne does not occur on the buttocks. If acne-like lesions appear on the buttocks, folliculitis needs to be considered, and can usually be treated with topical antibiotic medications such as mupirocin ointment.
Acne is a common chronic inflammatory disease of the sebaceous glands of the hair follicles, which occurs on the face, but can also be seen on the chest and back, shoulders, but not on the buttocks. When acne-like lesions appear on the buttocks, folliculitis is most often considered. Topical antibiotic medications such as mupirocin ointment and fusidic acid ointment can be used as prescribed.
For patients with recurrent episodes, generalized lesions, and poor efficacy of topical medications, systematic use of cephalosporins, macrolides, or quinolone antibiotics can be prescribed.
It is recommended that patients with folliculitis in the buttocks avoid sitting for long periods of time, and if necessary, go to the hospital and cooperate with the doctor for active treatment.