Cleaning the ears without alcohol, alcohol on the skin, mucous membrane irritation, usually with saline or hydrogen peroxide for rinsing, if the ear skin disinfection, you can use 75% alcohol, with a cotton swab on the skin need to be disinfected 3 times. If there is pus in the external auditory canal or tympanic cavity, after cleaning with 3% hydrogen peroxide, it needs to be thoroughly dried. For fungal otitis externa, or chronic suppurative otitis media, 4% boric acid alcohol ear drops can be used. Before the ear drops, you need to let the otolaryngologist on the external auditory canal and the tympanic chamber, after a thorough cleaning, go home with 4% boric acid alcohol ear drops. Ear drops to take the side lying position, the affected ear up, with the drug drops continue to lie on the side for 10 minutes, the external auditory canal of the medicine out and dry the external auditory canal mouth, boric acid alcohol irritation, ear drops have more intense transient earache phenomenon.