I had a similar problem years ago and after a few months I got very high fever. My Dad took me to the er and it was strep throat. It took me a long time to recover and I had night sweats for months after. Go back to the dr, and be firm that you want to know whats wrong and get it fixed, If you fly alot the cabins in airplanes have very low humidity so stay hydrated. Dove
Hi,
You should make an appointment with an ENT ( a physician who specializes in ears/nose/ throat issues). Meanwhile you could check your symptoms out at the link below:
http://symptomchecker.webmd.com/multiple-symptoms?/sorethroat-mouthsores
Good Luck