Lbpbbp -

Try to get your husband to the ENT as soon as feasible. If he completed radiation last August, he should not, just now, be exhibiting ulcers.

If the ulcers are not responding to the topical treatments or prednisone, then the cause may be driven by something other than surface irritation

Even if its just for peace of mind, rule out recurrence.

Are they growing or bleeding? For me, each cancer diagnosis was preceded with painful ulcers that did not respond to topical treatments or medication.

Please follow up with your ENT.....