Perianal abscess is a purulent inflammation caused by bacterial infection, which should be treated with antibiotics in the early stage, either orally or by infusion. In more serious cases, after surgical incision and drainage, the pus can be drained cleanly by applying decomposing and anti-inflammatory ointment. These drugs can accelerate the tissue absorption of perianal abscess and promote early healing, which is more beneficial for patients with perianal abscess. For some perianal abscesses that have formed larger pus cavities or are febrile and the abscess continues to expand, it is not suitable to apply topical ointments for the time being, so you can apply depurative ointment and anti-inflammatory ointment after surgical incision and drainage.