Ear pus, an infectious inflammatory condition, is mainly caused by a bacterial infection, most commonly otitis media. Acute suppurative otitis media, or an acute attack of chronic suppurative otitis media. First, use anti-infective drugs, such as cephalosporin antibiotics, azithromycin, etc., as well as antibiotic ear drops, such as lomefloxacin ear drops and ofloxacin ear drops. It is also important to distinguish the pus that comes out of the external ear canal after the knot has broken down, which is viscous and lumpy, and to treat it with anti-infective treatment as well. It is also important to pay attention to fungal diseases of the middle ear, which cause pus flowing from the ear secondary to infection. For fungal diseases of the middle ear with pus, the main treatment is anti-infection. However, after the infectious inflammation is controlled, antifungal treatment is also required, and the condition is relatively stubborn.