Swelling of the perianal sphincter may be caused by infection, which needs to be treated with local medication or incision to drain the pus. Perianal sphincter swelling, may be due to bacterial infection caused by local swelling, can be used locally antibiotic medication, such as applying erythromycin ointment, mupirocin ointment, etc. can be anti-infective, swelling and anti-inflammatory; can also be combined with the local use of hemorrhoidal ointment or hemorrhoidal suppositories, such as musk hemorrhoidal ointment, compound keratoconjunctivalate suppositories, etc., to help promote local blood circulation, relieve the symptoms of swelling. If the swelling of the perianal sphincter is more serious, especially when an abscess is formed, the effect of simple medication is often slower, and it is necessary to incise and drain the abscess and carry out anti-infection treatment routinely. Perianal sphincter swelling, once found, it is recommended to go to the hospital in a timely manner, to clarify the condition, with the doctor to take appropriate treatment, the patient should not self-medication, to avoid delaying the condition.