Rita,

I am so glad you shared the rest of Zack's story with us. I have a child with a
severe milk allergy, and on top of that we had determined he was also allergic to
dog saliva. We have noticed that some dogs bother him and some don't, and one dog
in particular has caused him difficulty on and off. I will check with the dog's
owner and find out about his food, and if they have been changing it.

Thanks!
Lis