The pustules after being bitten by ants are painful and itchy can be treated with general treatment and medication. 1. General treatment: when the pustules after being bitten by ants are painful and itchy, the patient can wash the affected area with water as well as soap and water. You can also use external ice packs to relieve the pain and itching symptoms. 2. medication: patients can follow the doctor’s instructions for local application of peppermint glycerite lotion, cool oil and other drugs, has the role of astringent itching. Glucocorticoid cream can be used externally, such as hydrocortisone butyrate, mometasone furoate, etc., with anti-inflammatory and anti-itching effect. If the symptoms are more serious, you can also take oral cetirizine, loratadine and other antihistamines, with anti-allergic effect. Patients with pustules and pain and itching after being bitten by ants can go to the hospital and use medication under the guidance of the doctor.