Baby’s leg peeling skin in circles

Anyone knows whats happening to my baby’s foot? Siddenly got alot of small circular dry skin thats peeling. All in small circles. No water inside or anything. He’s coming to 10 months. Its around his toes, bottom of feet and top of feet(some). Doctor said might be due to recent hfmd rashes drying up, but its getting more. I dont think its from the hfmd rashes cause its gone. We’re currently just putting moisturizer. And i kind of believe now that eh’s crawling fast, it kind of worsen the condition. He doesnt look like in pain, or it doesnt look like a painful blisters.