MY BABY STARTED CRAWLING TODAY😁 so proud. But now his knees are all red. It was also a hot day today, so he had just a onesie on half the day. Is this normal?

Tamara • Mommy to my 2 beautiful baby boys, Nathan Louis💙 born August 12, 2017 and Parker Joseph May 6, 2019❤️ My whole world😍

Should I put anything on his knees?