it may be time to see an ent -- ear nose and throat -- specialist; someone who has the skill and equipment to peer up that clogged nostril of yours to see if you have a physical obstruction like a deviated septum or polyp. if not a trial of nasal corticosteroid sprays (by prescription only) may be something for your doctor to try. not all sinus infections (as a matter of fact very few) are due to bacterial infections so this could be another reason why the two course of antibiotics didn't seem to help. the ent can also check your sinuses.
my right nostril is stopped up. had 2 treatments of antibiotics. what to do? . went to doctor in october for sinus. left nostril cleared up but right remains stopped up. went back in november received another treatment of antibiotics and mucinex. left nostril is so clear its dry. right nostril is still stopped up and gets worse at night making breathing through my nose impossible. i can't take antihistmines for a long period of time because they eventually trigger my bronchotis(excuse the spelling) and make me feel bad. what do i do? . .