A mucosal cyst in the right maxillary sinus may cause a cough. Mucosal cysts of the right maxillary sinus do not cause significant coughing symptoms if they do not rupture, but they may cause headaches and pain in the upper teeth on the same side. However, if the cyst is large and grows to a certain extent, it will rupture on its own and the fluid will flow out, which may flow backward into the throat and unintentionally cause local irritation, thus causing a cough. Right maxillary sinus mucosal cyst if there is no obvious clinical symptoms, generally do not need special treatment, but if the condition is more serious need to go to the hospital in time to cooperate with the doctor to take the maxillary sinus radical surgery for resection, after the operation to the hospital for regular review.