Cheek rash

Farouha • Dino👶March 07 2020 + Nimo 👶July 09 2021

I'm breastfeeding a 2 month old and every day this cheek rash gets worse. Can someone help explain to me what I might be dealing with? I mean is this bad, like I should go get it checked out? Or just some typical baby type skin problems that go away eventually with extra care?