diaper rash ?? help

Stephanie

so my daughter has had a few times diaper rashes or the doctor say it yeast infection, but my question is how do I stop it from happening again like I don't know how she is getting it so much like she doesn't sit in her diaper wet or poopy it's changed right away unless she's sleeping.

she's 11months and she's bottle feed with formula and breast milk.

and food is both baby food and some of big people foods.