gcsjr

There are some options but it's hard to tell from you post exactly what, if anything you're doing today to to prevent the infections.

First of all, you say that "I've tried nasal surgery, allergy shots, nasal irrigation, prescription nasal sprays, reducing dairy products and nothing has worked (except antibiotics once I get them)".

When you say you've tried nasal irrigation and prescription sprays, what does that mean exactly? Nasal irrigation and steroid nasal sprays are the two most effective means of preventing recurring sinus infections but must be used every single day. It takes several weeks of daily use for them to have an effect and then they must be used on an ongoing basis to help minimize the recurrence of an infection. It would be helpful to know how long you took them for (they're not a guarantee but typically do cut down on the number of infections someone has if they're used every day).

The fact that you've tried allergy immunotherapy indicates that you have some type of underlying allergy. Are you taking antihistamines daily to minimize any ongoing allergic reaction that causes inflammation and leads to infection? If not you should definitely be taking an antihistamine every day.

Beyond that there are two other common contributing factors to recurrent sinus infections - GERD and an immune deficiency. GERD can contribute to sinus inflammation and, although it's rare, some immune deficiencies have recurring sinus infections as one of their primary symptoms.

Re-starting the nasal sprays and saline irrigation are probably your best bet, but a visit to an ENT (to confirm that there is no physical blockage causing your infections) and allergist/immunologist (to rule out an immune deficiency of some type) are probably the best course of action.