If a person suffering from nasal obstruction with mild to moderate nasal allergies it means most probably he is suffering from DNS (deviated nasal septum). Nasal obstruction is because of the deviated portion of the nasal septum (this is the bony partition of the nose cavity). Allergies are because of the hampered muco-ciliary mechanism (normally mucus is produced in the nose to moisten our nose cavity , oral cavity , and help food bolus to move downward ,this mucus is basically moves on the cilia of the nasal mucosa.) This mechanism gets hampered and mucus start accumulating in the nose and sinus cavity which is why thick mucus comes from nose  in patients of nose obstruction and person develops SINUSITS. When a surgeon removes the nasal septum deviation completely then slowly in 3-4 months the mucociliary mechanism recovers and patients get full recovery. If the septal deviation has not been removed properly the symptoms persists, and patient thinks that the nose bone has again regrown. It is not because of the regrowth but because of the half surgery done or due to the non removal of the deviation (reason can be many.) Nowadays nasal septal deviation can be removed endoscopically and patients gets good results as per the strategy followed in ARUNA EAR NOSE THROAT HOSPITAL. We are providing facilities of complete removal of the deviation, and we are giving good results consistently.