The phrase "to burn the skin" means to damage or harm the outer layer of the body. It describes when the skin gets injured or irritated by heat, chemicals, or other sources, causing pain, redness, and sometimes blisters or peeling. Full definition
It's funny, but rarely do you ever hear talk of post vacation syndrome — you know sun burnt skin, chlorine damaged hair, and 10 extra pounds that magically appears. (wellnessmama.com)
Burning the skin on his bum diarrhea gas no fun. (strocel.com)
Is your hot water so hot that it practically burns the skin off of your hand when you turn it on? (armourinsurance.ca)