Coughing up my esophagus

I am so sick of coughing, I can't take much more of it. I took Cold FX which really helped with the first part of the cold, my sinuses cleared in a few days. But, I just did the main treatment which is 3 days and didn't get more to keep up the daily dosage. I feel like I am now paying the price, like the cold is worse now because the first part was so easy. I have tried NyQuil, Buckley's daytime/nighttime, and now extra strength Robitussin and Sucrets lozenges, gurgling with salt water, tea with lemon and honey...It is truly the cough from hell and I keep peeing my pants. It is bound to get better right? But, then I hear people say how they had it for weeks, or months even. Yikes. It will permanently damage my body if it lasts that long. I am going to try to go to sleep but that hasn't been going well either. Wish me luck or provide a cure!