Naturopathic Physicians sometimes use oral drops in lieu of allergy shots to desensitize the immune system - perhaps that would be helpful in your case?
Also, you may have mold growing in your sinuses, which would need to be cleared out. There is an oregano oil based nasal spray that may help if used before and after mold exposure: http://www.oreganopro.com/SinuOregaNasal.asp (I am not financially or otherwise affiliated with this company or product)
The nasal spray may also be available in your local drug store.
Chronic Lyme Disease, Gluten & Sulfite Sensitivity, Many Food/Inhalant/Medication/Chemical Allergies & Intolerances, Asthma, Gut issues (dysmotility, non-specific inflammation), UCTD ("Secondary Lupus-Like Syndrome"), Osteoporosis, Pancytopenia, chronic malabsorption/malnutrition, etc.; G-Tube; Currently TPN-dependent.
Meds: Zofran, Pulmicort, IV Ceftazidime, Heparin (to flush PICC line), Claritin, Colloidal Silver (used topically), probiotics, homeopathy.