It really depends on what meds you are prescribed and the severity of your symptoms(sinus)...The FAA has certain ones(meds) that are watched or..lets say "frowned" uppon. If no changes in allertness or cautions about operating equipment notifications are suggested or implied by your doctor than there is a good chance the FAA wont have a problem with them. Sinus problems are watched closly due to changes in equlibrium or environmental awareness...dizzyness is not something pilots should be combating. Passengers probably dont want to see the close one eye to make it home technique.......... If it cant accidently kill you...then whats the point.-RKiger
