Redness and peeling between 7 month old's toes?

He is my third kid. All of my kids had the normal peeling feet at the newborn stage but he is 7 months old. Never had this with my others. Doesn't seem like it bothers him but it kind of smells like vinegar? Could it be just dry skin? Or athletes foot? Yeast? He isn't walking or crawling and never wears shoes. Does wear socks quite a bit because my husband keeps the house pretty cool since he works nights and sleeps during the day so I keep socks on the baby so he doesn't get cold feet.

With an area hit hard by covid, I really don't want to make a trip to the pediatrician and risk exposing him to the virus unless absolutely necessary.