If there is local redness and swelling after a red ant bite, the medications available include oral and topical ones. Oral medications can be applied with anti-inflammatory drugs, including roxithromycin capsules or azithromycin dry suspension, along with antihistamines, such as levocetirizine hydrochloride oral solution or fexofenadine hydrochloride tablets. Topical medications can be applied with anti-inflammatory ointments, such as erythromycin ointment or clindamycin phosphate gel, along with hydrocortisone butyrate ointment or fluticasone propionate ointment. If the redness and swelling still does not subside significantly, you can add dermatol ointment or Bing Huang Skin Ointment to enhance the therapeutic effect of cooling the blood, detoxifying, relieving itching and pain.