This condition is usually considered to be purulent otitis media, because purulent otitis externa is mostly accompanied by ear pain. You can first clean the pus with hydrogen peroxide and then use antibiotic ear drops, such as levofloxacin ear drops, three times a day. The application of ear drops should be standardized and requires an ear bath for 10 minutes, while keeping the ear canal dry to avoid water, which can aggravate the infection, and also with oral administration of some antibacterial agents, such as cephalosporin and roxithromycin. If the symptoms are not relieved after 3 days of medication, you need to go to the hospital to improve the otoscopy and make a clear diagnosis. And take the pus for bacterial culture and select a sensitive antimicrobial agent. Some patients with fungal infection need to apply anti-fungal drugs. The above content is for reference only. Please refer to the doctor’s guidance for specific medication and treatment.