oh poor baby...I had hand foot and mouth a few years back and it was awful!! My daughter has a lip hemanigioma and she had an ulceration on her upper lip as an infant and it was so painful and so I just feel for you guys. If it were me, I would make sure the specialist took a look at it firsthand just to be on the safe side. I wouldn't want to mess around with any kinds of ulcers in the mouth with the hemangiomas you mentioned. I hope he is feeling real better soon.