second time to try prevacid, acipex quit working, and again feel ...

My 3-year-old on Prevacid said his skin has bugs crawling under it two or three in the past month that he's been on it. The first time was 2 hours (or a little less) after the first dose, and he had hives (minor, but recognizable to me from my own allergies) on his legs for about 30 minutes before they went away. It's freaky, but you're not the only one. We tried Zantac, but it quit working. (Now Prevacid isn't working as well, and that's scary too.)