Surgery for simple otitis media needs to be performed in dry ear (no pus flow) for more than 3 months, but it is not absolute, for example, the middle ear mucosa chemotaxis forms more cells with secretion function and will secrete mucus periodically, and then there is an allergic reaction to the tympanic mucosa, so it is difficult to completely dry the middle ear. In osteoid otitis media, if the drainage is clear, local medication should be used, but attention should be paid to regular review. In cases of osteoid otitis media with poor drainage or suspected complications and cholesteatoma otitis media, modified mastoid radical surgery or mastoid radical surgery should be performed early to completely remove the lesion and prevent complications.