Hi Lilyann,
I also had coughing as part of my thyroid cancer symptoms and my cancer had also reached my vocal cords. After surgery I was left with one paralyzed cord. Unfortunately the radiation therapy resulted in a lot of mucous which also caused coughing. The radiation therapy was successful in getting rid of all residual cancer except for one lymph node so it was well worth the coughing.
Good luck in your journey!

Hi Liilann,
I had/ have coughing issues….have you looked into reflux? I have a history of GERD (prior to the partial thyroidectomy) and after the surgery it was much worse….I think the acid was now able to travel further up in my throat now that the BIG nodule was removed. I took medicine for the GERD and it really helped the coughing. When my stomach acts up, my GI has recommended Gaviscon….especially before bed and raising the head of the bed so gravity works against the acid. reflux can often cause coughing and going to bed after eating can increase the issue.
My endocrinologist told me that people often have problems with GERD after having thyroid removal….IDK if that is for people who already have a GERD issues or people in general. Good luck!