Throat irritation. Over 2 months now!

I was a smoker before and I have throat irritation since 2 months now for which I met an ENT specialist who told me after endoscopy of throat that it's silent reflux (lpr) and granular pharyngitis and asked me to take neksium 40 days ago. Now last week I met him he saw my throat again he told me that the dilated vessels in the larynx has reduced significantly and granules also reduces a lot. But I still had pain. As I was very very tensed about cancer he assured me there's nothing like cancer and simply asked me to continue neksium. I am still unable to take that thought out of my mind don't know why and unable to focus on work. Yesterday I started feeling like there's a nodule in my neck and also bit of pain but mom and dad said it's just due to my worry there's no nodule there. I'm not sure what to do. Even I'm sneezing since yesterday a lot. What should I do kindly help😔 I'm not able to focus properly because of this problem as it has extended over 2 months now