Pinky Red Rash All Over Body What Can This Be? My Son Gets A Lumpy Dry Rash All Over Hus Body But Only In Winter, It Isn't Itchy Just Pinky

What can this be? my son gets a lumpy dry rash all over hus body but only in winter, it isn't itchy just pinky - pinky red rash all over body

Dry red patches. went to see her doctor a few years ago and said: "What is eczema, but why is happens in winter?