There are many types of nebulized medications and doses: 1. Use saline 10-20ml and add dexamethasone 5mg for nebulized treatment. 2. Use saline 16ml and add gentamicin 8 units plus dexamethasone 5mg for nebulized treatment. 3. Use saline 15ml and add a chymotrypsin or then add cough and phlegm relieving medication such as aminoglutethimide injection One piece for treatment. Nebulization treatment mainly treats chronic pharyngitis, pharyngolaryngitis, tracheitis, bronchitis, generally 1-3 times a day, 3-5 days a course of treatment.