Anyone Else have a baby who suddenly has a reflux relapse? Dd has been on ranitidine since she was 6wo for reflux. She has barely been sick as long as I make sure I give her her med at the right time, she is now 5.5mo, has been weaned onto solids for about 5 weeks now, suddenly this week she is being sick again. I've not changed the amount or type of food she is having, her ranitidine dose is the same (for her weight) as its always been, so what is going on? She has been fine sleeping flat in her crib for a month now, but this week I've had to raise the end again as she has woken a few times coughing and spluttering with vomit.