Does saline sprays and saline rinses like net pots dry out my nose and sinuses? I am 9 month post-op of Rhinoplasty.

Saline drops will not be contributing to dryness. Dryness after surgery usually comes from resection of healthy nasal epithelium. I would consider seeing one or two other doctors for additional recommendations.

You can definitely overdue things with nasal irrigation.  If you are doing that too often or too aggressively you can wash the normal protective mucus out of the nose, actually making things a bit worse.  The combination of over-the-counter nasal moisturizing sprays multiple times a day, along with some Vaseline ointment placed just inside the nostril itself, usually works very well. If this doesn't do the trick, make an appointment with a local ear, nose, and throat physician and he or she will be able to tell you what best to do next. Good luck.

Hello LoriBorders,Saline sprays and neti pots, post-surgery help the nasal cilia and mucosa become healthier and functional.  It may feel dry, but it is trying to create a more "normal" nasal environment after the surgery.  In general, they should be very helpful.  Good luck with everything!