How to treat sinus mucous membrane cyst is related to the severity of the disease. Generally, if the cyst is small and asymptomatic, no treatment is needed; if the cyst develops symptoms such as headache, the cyst can be removed by surgery. 1. Small and asymptomatic cysts: Because sinus mucous membrane cysts have a tendency to rupture naturally, so in the case of small and asymptomatic cysts, there is no need to deal with them, and if necessary, they can be dynamically observed and regularly reviewed. 2. Symptoms of cysts: Increase in size of cysts can lead to headache and other symptoms, thus affecting the daily life of patients. Therefore, when the symptoms are obvious, the cyst is usually treated by surgery, and the natural opening of the sinus is enlarged and the cyst is removed under nasal endoscopy. If you find sinus mucosal cysts, it is recommended that you take a systematic examination to identify the cause of the disease, objectively assess the condition, and then follow the doctor’s instructions to standardize the treatment.