Allergic dermatitis is a common skin disease characterized primarily by allergic skin reactions, manifesting as numerous small and large papules on the body, and may also include symptoms of itching. If itching is significant, scratching is likely to occur, which can lead to bleeding, scabbing, and flaking of the small papules. After developing allergic dermatitis, it is crucial to promptly identify the allergen and treat the condition accordingly, avoiding contact with foods that may trigger allergies.