Sinusitis patients to eat how long antibiotics, according to the type of sinusitis and the severity of the lesion, personal constitution and other factors to decide, it is difficult to have a specific unified time, there are the following analysis: 1, acute sinusitis patients can be oral, or intravenous application of antibiotics for symptomatic treatment, treatment, the application of the time is 7-10 days or so, if accompanied by diabetes or lesions are very serious, or the whole group of Sinusitis can also be appropriate to extend the treatment time, no purulent secretions in the nasal cavity and then consolidate a few days, the effect will be more satisfactory. 2, chronic sinusitis can be oral macrolides for symptomatic treatment, treatment, recommended small doses of medication, the course of treatment may be about 2-3 months. Patients with acute exacerbation of chronic sinusitis, it is recommended to do bacterial culture of nasal secretions and drug sensitivity test, can be short-term oral antibiotics for treatment, the time is about 7-10 days. In short, the application of antibiotics for sinusitis patients must be careful, need to combine the condition, it is best to do the bacterial culture of nasal secretions as well as drug sensitivity tests, etc., to make a comprehensive choice, the effect will be more ideal.