Dermatitis

Eczema, dermatitis, and psoriasis are all related to the immune system. All of these conditions cause a red, scaly rash that can itch or burn. In some cases, they also cause a deep blistering in the area where the skin is most affected. The symptoms of eczema, dermatitis, and psoriasis can be controlled by avoiding contact with irritants and using a moisturizer on the affected areas.