Childhood allergic eczema is not a contagious disease, so it is not transmissible. Eczema is a common skin allergic disease during infancy and early childhood, characterized by rashes and skin itching. The rash mostly appears on the neck, the perineum, and other areas, often recurring. The onset in some children is related to family genetics. When children develop eczema, they can apply calamine lotion topically or take antihistamine medication orally under the guidance of a doctor to relieve symptoms of skin itching. In terms of diet, it is advisable to avoid allergenic foods such as fish, shrimp, eggs, and seafood.