Sorry to take so long in answering your post. My experience has been sinus problems that cause a dry cough and phlgem that drains down my throat. It can cause a sore throat at times and even loss of voice. Try using allergy medication like Claritin or migraine medications which help clear your nasal passages. There are also rinses you can use that you put in your nose and it drains down the back of your throat, and clears out the sinus passages.
It would still be a good idea to get it check out by your doctor as he might have a better medication for you to try, and he can be sure that is what the problem is.
It is very important to remember not every symptom or illness, is caused by fibromyalgia. You can get other health problems that have nothing to do with fibro. Good luck and hope you feel better soon.
