Colicky baby?

My daughter seemed to have a lot of trapped wind so we changed her to medium flow teets rather than slow flow which she seems fine with, we also started her on infacol and she was crying a lot and seeming distressed.

Since starting infacol she’s been being sick a bit more and definitely having a lot more wind down below! She still seems pretty unsettled and grouchy. (She does also have a heat rash at the moment too which we have been to the GP for and have cream to apply).

So I’m not sure if she’s just grouchy because maybe the heat rash is a tad itchy or if the infacol hasnt worked and we need to try something else?!

How long should I try infacol for before trying something else?

What other products are any good?