Dermatitis and eczema are two diseases that are mostly formed clinically for complex reasons, related to allergies, mechanical stimulation, and systemic diseases, as follows: 1. Allergies: Some people form this disease, which may be related to allergies, especially some people are allergic to food, which may be stimulated by food allergens, leading to some allergic changes in the skin, especially the formation of certain inflammatory papules, papules, or cause vesicles, oozing. 2, mechanical stimulation: Some people may scratch themselves because of itching and irritation symptoms, especially repeated mechanical scratching, resulting in skin erosion and exudation, also forming dermatitis and eczema aggravation. 3, systemic diseases: Some people form this condition and systemic diseases related, such as diabetes, liver and kidney insufficiency and the emergence of certain thyroid function abnormalities, it is also possible to induce these diseases.