I don't have any good advice for you, sorry to say, but since I was the one to post about my daughter's reflux I wanted to say that I sympathize. I guess our experience so far has been to go conservatively with younger kids. (My daughter is also 3.)

We have been very fortunate in that the reflux is improving and we will be able to avoid surgery. I hope that you will be able to find good information!

Shaun
www.homeschoolblogger.com/shaunms