Poor girl

We were having trouble with breastmilk so put her on formula. She’s been doing great on it. She was just put on meds for acid reflux and since being on them she’s had bad diarrhea to the point her bottom is red and raw. We’ve tried 2 different creams. Diarrhea is a side effect to her meds. So we don’t know if it’s that or milk intolerance. She has an appointment in the morning. She will only sleep if she’s laying on momma.