Late radiation complication -slow healing mouth ulcers

Mavish

I was diagnosed with T2N2M0 SCC of tonsil. After the radiotherapy, I has mucositis aa expected. But after about month after the treatment,I had big and deep ulcers where the areas that received  the highest doses of radiation.They healed very slowly (more than a year), with alot of scar tissue. I have still mouth sores. 

I was wondeeing if any one experience similar complications.

Thanks in advance.