Has anyone had to deal with allergic reactions? Buddy had one last night he just started going nuts trying to scratch all over, his eye swelled and so did his nose. I called the vet right away and he had me give him childrens Benadryl. It worked but we are still not sure what caused it. He has a distemper shot 36 hours before that so we don't think that is it, he did get a hold of 1 M&M, but the vet does not think that is it either. So now I am worried about leaving him alone because I don't know what caused it so I don't know if it will happen again. any thoughts and suggestions would be great.