My sister has Stage 3 tongue cancer at the base of her tongue. She has had the tumor removed through surgery (along with some lymph nodes on one side of her neck) and finished 6 weeks of radiation treatment approx. 10 weeks ago. She has been unable to eat (relying on the PEG) since half-way through radiation mainly due to a very swollen tongue which doesn't seem to be subsiding. Can anybody give advice on whether this tongue swelling is normal after radiation and how long it may last. Are any treatments available?