Infants and young children have delicate skin, poor defense ability, and strong metabolism. If they do not take a bath frequently, the accumulation of sweat and other excrement will irritate the skin and cause skin infection. There are 100-250 sweat glands per 1 square centimeter of baby's skin, and the dirt in the body excreted by these sweat glands also needs to be removed in time. So, why is...