Why aren't nasal sprays doing anything to help my breathing (deviated septum)?

There are 2 kinds of nasal blockage, hard tissue and soft tissue. Hard tissue represents anatomic deviations of cartilage and bone (deviated septum, nasal valve collapse, nasal bone deviation) and typically only responds to surgery. Soft tissue problems are due to swelling (inflammation being caused by sinusitis, allergies, hormones, nasal irritation, etc.) and have the potential to be reversed by nasal sprays, allergy pills, or allergy shots. Soft tissue problems can also be improved by turbinate surgery to open up the nasal airway further. If your problems are not soft tissue based, then sprays will typically not help. Perhaps that is your issue. Hope this information helps.

All the best.

A deviated septum typically causes a blockage in the ability to breathe through your nose.  Flonase will not treat a fixed obstruction.  Perhaps you should consult with an Otolaryngologist or a Facial Plastic Surgeon.  Both have experience with the intranasal pathology and can evaluate you for the possibility of obstruction.  Additionally, there are other anatomical reasons for having obstruction.  These can easily be evaluated by these surgeons.  

Evaluation of the septum, the external nasal valves, the internal nasal
valves, the turbinates, inspection for masses, etc. are all part of the
exam. Sometimes an anatomic source cannot be identified.Kenneth Hughes, MDLos Angeles, CA