How do you get thrash off of babies tongues?

The doctor prescribes nystatin.

this^ and make sure you put some on your nipples too. My 2 yr old has it right now.

@junesmommy15, thank you. !

I'm a FTM and she didn't really get it until I started suplimenting with formula to get her weight up

Thrush is yeast and yeast feeds off of sugar, which is in formula... Maybe see if there is another formula with less sugar? I'm not familiar with the different brands, but have heard some contain more than others.

Yeah the bottle can contribute to it. Just take her to the doctors and get that fixed.