I Had An Ear Infection In July, Then 8/4/15 I

I had an Ear infection in July, then 8/4/15 i was diagnosed with bronchitis. It took 3 antibiotics and a month to clear. Now I just have really really thick postnasal drip that is still making me cough. It sticks to the back of my throat, but my sinuses are clear and not congested. I've had allergies my entire life, I get 2 shots weekly and am on an antihistime. I've never had anything so frustrating. And as far as I know I've never had bronchitis (plenty of sinus infections though). I no longer have tonsils. Is this allergies or still the bronchitis not cleared?