Erythromycin ointment can be applied to the wound after perianal abscess surgery to prevent wound infection and promote healing, but attention should be paid to exclude contraindications, adverse reactions need to stop. It should be used in accordance with medical advice. 1. Indications: Erythromycin ointment can be used for the treatment of purulent skin lesions, burn ulcer surface infections, common acne and other conditions. For perianal abscesses after surgery incisions, you can use the drug. 2. Adverse reactions: after the use of skin redness, swelling, stinging and other symptoms of irritation, or local allergic reactions such as rash, must immediately stop using the drug. 3.Contraindications: (1) Drug allergy is prohibited. (2) Prohibit co-use with chloramphenicol and lincomycin. (3) Prohibit oral use, only can be used externally. (4) Pregnant, lactating women should use the drug with caution. Erythromycin ointment for wounds after perianal abscess surgery needs to be used under the guidance of a clinician, and unauthorized use of the drug is prohibited.