My first thought was maybe ringworm (i have reached out to his dr just waiting to hear back). I asked my brother in law who has experience with ringworm and he said it definitely looks like it to him but my husbsnd has me feeling like im over-reacting to 'a rash' it. (Which i find hilarious since even the boys dr comments that we dont bring them in for every little thing) but this is concerning me.
I thought eczema but have never seen it in a circle. Thank you for sharing :) still waiting to hear from his Dr. Hoping it's nothing but better checked then finding out later that I should have brought him in.