I totally agree with Barbara and Petey. Get a biopsy and find out for sure what this is. My husband had an exam and CT scan one month after finishing his radiation therapy for tonsillar cancer and was given the "all clear." Two weeks later he got a sore throat on that side that wouldn't go away. The ENT and RO said it was just normal healing following radiation. But after many rounds of antibiotics without any improvement, a PET scan was done and showed residual tumor at the original site. A biopsy was then done and was positive, and on Monday he goes in for major surgery to resect the entire area. So much for "all clear." I think you should keep pursuing a biopsy so that you can be sure it isn't cancer.

Good luck and hopefully you'll get a biopsy done that will show it is NOT cancer.

-Tricia