I Had A Endoscopy Performed Some Months Back And Ever

I had a endoscopy performed some months back and ever since I have had a tickle in the back of my throat and a really hard cough. My right ear feels a lot of pressure inside and my adams apple is making a cracking sound. The cough is so hard and deep, it's embarrassing when I go into a spell. I made a baby cry today from my cough. :(