Heat rash if anything is usually just a little itchy. Keeping it clean dry and cool should help it go away quickly. If not, you can always call the pedi in a couple of days.

okay that's cause it's just making me nervous not knowing if it's bothering her or something @arivera64

heat rash is caused by blocked sweat glands. oily substances will not help. It's best to just keep clean, cool, and dry