Hi thought I should reply to this in case anyone else is facing this. I had a hen and her mouth smelt exactly like rotten eggs and when we took her to the vets an ulcer was found under her tongue. The vet prescribed antiobiotics and the problem was fixed.
I have a hen and her mouth smelt like rotten eggs. It smelt really really bad. The vet found an ulcer under her tongue and gave her anti-biotics and it got cleared up.
