Balloon Sinuplasty should help you. It is a minimally invasive procedure where a thin guide wire is threaded into the affected sinus and a balloon is positioned at the sinus opening and inflated thereby dilating the opening for about 10 seconds. It created microfractures in the sinus bone opening ensuring that the sinus opening remains dilated. This ensures proper drainage of the infected sinus cavity and proper entry of medicines administered as nasal sprays into the sinus.