Milk of Magnesia help! (please)

We’ve found that the MoM works WAY too well. I’m trying to find a good dose for her. It seems that whatever we give, she has big huge blowouts (both times at day care). On Thursday they told me she was grunting and crying and constipated, so that night I gave her 1.5tsp in her evening bottle. The next day when i went to pick her up from day care the teacher was standing there holding a disinfectant bottle and Hailey was mostly unclothed with no shoes. She said “WE NEED TO TALK” and proceeded to tell me a horrific story of how Hailey had a nasty poo blowout all out her diaper right down to her shoes, up her back, on her hands, and hair, and the rug. Just hearing about it made me sick, though I couldn’t help but think that I was glad it happened there and not at home. Sounded stinky! Then the supervisor was talking to a few parents at what a bad day they had, and she said “the heat broke all morning, then a water pipe blew in the infant room, and then…” and she looked at me and stopped. I had to add in “then Hailey blew in the toddler room!”

Anyhow, does anyone use MoM and know how much to give? If we have another blowout at school I think they’ll come after me. The teacher looked really mad.