Worried wife here. My husband is six weeks post 30 radiotherapy sessions and was making great progress until five days ago when his throat suddenly got much sorer. Coincided with covid/flu jab incidentally. Dentist yesterday confirmed no tooth problems. Is this normal - could it be a reaction to something he has eaten? He was starting to eat good amounts in one go although still very reliant on feeding tube. We have to wait a week to go to ENT clinic and I am really worried it is the cancer rearing its head as Radiotherapy damage subsides. I called his specialist nurse who said he just has to wait until next Thursday. I am not good at waiting - always fearing the worst and my husband is very low although he won't say he's worried. Just wondering if it is possible to regress without sinister implications.