if you are in the uk,yes you're health visitor would give you a lecture!we went through this but ds was older and we thought we would try it but to be honest it didn't help.it wasn't untill he went on medication that thing improved.i think the reason they are against it is that if it's thicker going down it works the same way up and therefore may cause choking!gaviscon is a milk thickner and this worked for us whilst ds was on 4 milk feeds but then as we cut bottles we had to put him on zantac.