Baby rolls/ creases

My daughter has been gaining quite a bit of weight lately and she just got some baby rolls on her legs mainly and some on her arms. I just noticed today in the creases of her rolls there's some dry/red irritated skin. I bathe her daily sometimes I skip a day if she's very tired and I lotion after baths. Any suggestions on how to take care of this? Sorry if this sounds like I'm stupid I'm a ftm and do not want my daughter to be uncomfortable!