My 2 year old ds has a large mouth ulcer on his tongue. I took him to the GP today and was told to give him bonjela he gets hysterical when I try to put it on and the only thing he would eat today was soft bread. The added complication is Thad he has PKU and his protein substitute which he has to have to keep his blood levels stable seems to be really aggravating the ulcer. I've been trying to give him 2 hourly calpol/nurofen but he's now refusing that too? It's the first time he's had an ulcer though I've had them all my life so obv think he must have inherited them from me! Has anyone any ideas what on earth I can do to ease his pain and help him to eat? xxx