Allergic to Milk

You wouldn't think when you look at this little buddy that he is allergic to milk, but I'm afraid he is. It all started when around 9 months old, I tried introducing yogurt into his diet; he immediatly threw it up. When I talked to the doctor he thought it was a texture thing, then off and on I would try giving him something else dairy, and sometimes he was okay with it, and other times, throw it up. But recently Brian gave him a bite of his cereal, and with a little milk, he threw up and started wheezing. OH NO. So, I called the doctor again, and he thinks the worst: allergic. We need to keep him away from dairy until his next well visit. I hope he can grow out of it. I would love to hear from other moms who have gone through this, I mean.....what am I supposed to do? Milk is a huge part of our diets, and especially in little babies.