Eczema is one of the most common things we see. We often get questions about that.
Eczema is a chronic dry, itchy skin rash that can occur anywhere on the body, but is most often found on the insides of the elbows, behind the knees, the fronts of the legs, at the ankles, on the hands, the wrists, and on the neck.
It’s extremely itchy in character.
In children, about one-third of eczema is caused by food allergy, mostly to milk and egg, but occasionally to wheat, soy, or some other food.
Kids that have allergic eczema are much more likely to have eczema that occurs all over the body. Two-thirds of children that have eczema have non-allergic eczema, which means that no food allergy can be readily identified. These kids have eczema that is due to genetic reasons, specifically there is an inability of that person’s skin to retain moisture, so the skin dries out. And when it gets dry it itches, so people will rub and scratch. When you rub and scratch, the rash appears.
Adults are different. A much smaller percentage of adults have true food allergy triggering their eczema. Occasionally, adults can have a chemical contact such as makeups, or sunscreens, that may trigger the eczema. But in general, most adult eczema is non-allergic in character.