Sorry to hear you are suffering some of the side effects of Brachytherapy but there is help for you. Did your doctor give you a script for Floxmax? My husband used it every day to take away that burning from his seed implant. There is a new formulation out there that is even better than the last. If you don't have it, call your doctor and ask if it is for you - my husband took it for six months, his entire treatment time and is still on it to quell the occasional sensation.
I hope things settle down for you - we had good results with Brachy and hope the same for you - my husband was a 91 seed implant and the man in the bed beside him was a 102-seed implant and both are doing very well.
Best of luck to you. If you have any other Brachy questions, I'd be happy to answer what I can for you.