Miliaria rubra on baby’s face?

Charlette • God is awesome!♥️

My 5 week old has a bad heat rash on both cheeks and her chin on her face.. The doctor says it’s miliaria rubra and to not do anything... just to keep it clean. It’s driving me crazy not to do anything because it’s not getting any better. Anyone experience this with their newborn? I want to try aquafor or something but I don’t want to make it worse since it’s already caused by clogged pores.