As of 2015, no studies have established particular foods adults should avoid if they have eczema, states WebMD. Scientific research does not connect eczema flareups with specific foods, although individuals may have personal experiences with trigger foods. A certain food may appear to aggravate eczema when stress is the cause.
Food allergies in very young children can cause eczema, but after a child is 4, it is very rare for him to experience food-related eczema outbreaks. Food can trigger skin reactions such as hives but not eczema, notes WebMD. Testing for food allergies may be beneficial for children who have severe cases of eczema but not for children generally. Food allergies typically associated with atopic eczema, especially in children less than 1, include dairy products, nuts, eggs, and wheat and soy products, according to the National Eczema Association.