Hi i had cough & post nasal drip from 2 month now its been improved so much but occasional cough is there sometime minor itchiness in throat , i got CT PNS finding were 1) deviated nasal septum to right side , 2) concha bullosa in left middle turbulance 3) mild mucosal thickening in maxillary & bilateral ethmoid sinusities but we did CT after 1.5 month of symptoms before this i was checked two time PFT pre & post & 2 x ray but it was all normal . I did my igE test & got to know that is 682 . I did recent allergic skin prick test got to know i have Two type of dust Mite allergy & cockroach allergy but i never had it in my life ever first time this happens & i am shocked that i had allergy . Now dr given me Billasure M in noon & Furomist AZ nasal spray two time , seretide accuhale 1 puff & they also suggested HMD t Sensimune Immunotherapy is the best solution for this but its taking 3 yrs i am confused about the price of this per month & is it necessary or we can handle it on our own?