First, some patients may experience vertigo after washing their ears, which may be related to vestibular disorders caused by cold water stimulation. In such cases, it is recommended that patients lie down and rest as much as possible after washing their ears, and avoid walking and moving around to avoid sudden vertigo, which may cause them to faint or fall. Second, some patients have a moist, uncomfortable feeling in their ears after washing their ears. Patients should not pull out their ears or pick their ears, as this can easily induce damage to the skin of the ear canal or the eardrum, which can lead to otitis externa and otitis media. Third, after washing the ears, patients can use levofloxacin ear drops in moderation to prevent infection. Patients are advised to avoid spicy and stimulating foods, to keep the ear canal dry and hygienic, and not to let water into the ear canal when bathing.