Pain in ear once and frequent sneezing.

I used to sneeze alot till 2017. In Dec 2017 i experienced pain in my left year which became normal with hot water bag. I still thought of visiting an ENT. He diagnosed me with some kind of nasal allergy and said that all the cough is clogged in my ear which caused pain. He asked me to do X-rays, PFT and allergy tests. After that he told me it's on a mild stage and can be cured with medicine. Since then I am taking his medicine till now (from Dec 2017 to Jan 2019) and still it hasn't get over. In this one year I suffered from high prolactin levels (due to one of his medicine Pancruz DSR), which I am still getting treated. I also have thyroid problem with high TSH but my TSH levels were always under control and close to normal, but now suddenly it went high to 7.8 I feel like stopping this allergy treatment as its causing other side effects and doctor refuses to prescribe other alternatives. My frequent sneezing has stopped though. Please suggest if I should stop it midway. Thank you!