Chronic suppurative otitis media is a chronic purulent inflammation of the middle ear mucosa, periosteum or deep to the bone. It is a common clinical condition that is characterized by intermittent or persistent pus in the ear, tympanic membrane perforation, hearing loss, and in severe cases, intracranial and extracranial complications. Acute suppurative otitis media that is not treated in time or improperly treated with medication, with a prolonged course of more than 8 weeks, or acute necrotizing otitis media with lesions reaching deep into the bone, adenoid hypertrophy of the nose and throat, chronic tonsillitis, chronic suppurative sinusitis, etc., are likely to cause recurrent otitis media and persist for a long time. The common causative agents are Staphylococcus aureus, Pseudomonas aeruginosa, Aspergillus, Klebsiella, etc. In long-standing cases, there is often a mixture of more than two types of bacteria, and the strains often change. Non-budding anaerobic bacterial infections or mixed infections gradually increase. According to the pus culture of chronic suppurative otitis media in China, the bacteria are mostly Staphylococcus aureus and Haemophilus influenzae, and the number of gram-positive bacteria resistant to penicillin is increasing, so it is difficult to use general broad-spectrum antibiotics orally or by static injection, especially because the submucosal vessels of the middle ear mastoid have been scarred and fibrotic, so the local blood drug cannot reach an effective concentration, but instead The local drug does not reach the effective concentration in the blood, but makes the bacteria resistant to the drug, so the local drug is more favorable. The pus culture can be taken for drug sensitivity, and effective drugs can be selected. The common preparations and usage are basically the same as those for acute suppurative otitis media. However, it is only applicable to type I or II chronic otitis media. Before using the medication, make sure to remove the pus crust from the external ear canal, lay the affected ear on its side facing upward, take the exhaust replacement method after dropping the medication, push the ear screen, preferably with an attractor to draw it clean, and then push the medication to force it into the mastoid cavity of the tympanic chamber. Some type I otitis media with long-term pus flow can be cured within 1 to 2 months after regular and reasonable treatment. Otherwise, improper medication and failure to adhere to regular daily drops can hardly achieve the purpose of cure. Chronic simple and osteoid otitis media (1) Removal of surrounding infectious lesions, nasal turbinate hypertrophy, nasal polyp, nasal septum deviation, etc. that affect nasal ventilation should be surgically removed and corrected, chronic sinusitis should be radically treated, chronic tonsillitis and proliferative hypertrophy should be removed, especially pediatric proliferative hypertrophy and inflammation, which is the cause of long-term otitis media, and otitis media is often accelerated after removal. Healing. (2) Tympanoplasty. In order to remove the lesion and reconstruct hearing, Wüllstein and Z-llner had created tympanoplasty (Tympanoplasty) in the 1950s, which is now widely used by later generations. 2. Surgery for severe osteomyelitis and cholesteatoma otitis media Because of osteomyelitis, sarcoidosis and cholesteatoma lesions, the lesions should be removed in order to achieve a dry ear, and then improve hearing if possible. In the case of cholesteatoma, the lesion must be completely removed to prevent the occurrence of intracranial and extracranial complications.