The pain, itching and swelling of the external auditory canal is generally considered to be caused by otitis externa, including bacterial otitis externa and fungal otitis externa, which can be treated by applying some antibiotic ointment and antifungal ointment under the guidance of a doctor. 1. Antibiotic ointment: mainly used for otitis externa triggered by bacterial infection, boils of the external auditory canal, can play an antibacterial and anti-inflammatory, relieve local pain, itching and other symptoms. Erythromycin ointment and polymyxin B ointment can be used. 2. Antifungal ointment: mostly used in fungal otitis externa, it can inhibit fungal reproduction and relieve local itching. Such as clotrimazole ointment, tretinoin econazole cream, etc., before applying the ointment can be used salicylic acid and fluconazole ear drops to clean the external auditory canal. In addition to topical ointment, there are also related ear drops, the specific treatment should be clearly diagnosed in the doctor’s instructions to standardize the use of drugs and treatment.