Darlene,

Thanks for your response.  I will be much more careful with the challenging.
In fact, I'm not going to do it anymore.  My son's pediatrician has been
pretty laid back about it, I would say.  Just saying avoid milk and other
"top 5" allergens and try again in a few months and that he would probably
grow out of it.  We've kind of been following the Dr.'s lead.  However,
while that may be true in a majority of children, now I've seen enough signs
now with Liam that more caution is required.

What should I look for for a "good" allergist, especially for kids?  Does
anyone know one in the Mid-Michigan area?

Is there any evidence for what causes milk allergies?  We don't have any
history of it in either of our families.

Thanks.  Justine