my 10 months old baby while crawling her knees are becoming very dark how to prevent that... how to make the knees become back to the original colour....

A. It Happens with every child’s instead of making your child wear shorts or something you can make your child wear a lower or a pyjama or a 3/4 that’s going to help and also when your child is getting a massage or something from you take raw potato cut it into half and rabbit on to that area okay so the potato juice is supposed to be very healthy in cutting that dirt and tanning out