Middle ear effusion is mainly seen in the effusion formed by the negative pressure of secretory otitis media. Middle ear effusion is mainly discharged through the following ways: 1. medication, you can choose antibiotics, oral mucus promoter, common drugs such as eucalyptus pinene enteric soft capsule, Oronema drops, etc., to promote the movement of the eustachian tube and middle ear tympanic chamber mucous membrane cilia, so that the effusion in the tympanic chamber can be discharged through the eustachian tube. In addition, nasal mucosal constrictors and nasal spray hormones can be applied to promote the opening of the pharyngeal opening of the eustachian tube, which is more conducive to the discharge of the middle ear fluid. 2. The retention time of tympanic tube placement is 3-6 months, and some patients can be extended appropriately.