Medical alcohol can be used to wipe the ears, but the indications for its use need to be strictly selected and it is recommended to apply it under the guidance of a doctor when it is used clinically. For patients with fungal otitis externa or chronic suppurative otitis media, a combination of medical alcohol and boric acid, or boric acid-alcohol ear drops, can be used to relieve ear discomfort under the guidance of a physician, but this may cause a transient pain in the ear when applied. In addition, for patients who have broken skin in the ear canal, it is not clinically recommended to scrub with medical alcohol, as scrubbing can lead to severe pain in the mucosa and cause great discomfort to the patient. The clinical use of medical alcohol requires that patients should not be allergic to alcohol components, and if allergic, it will aggravate the condition.