Urticaria symptoms and photos in children Urticaria is a common skin disease, including acute and chronic types. The common symptom of urticaria in children is a honeycomb rash on the skin, accompanied by severe itching and hot itching. The rash of urticaria can appear on various parts of the body, especially the trunk and extremities, but can also appear on the face and scalp. The causes of urticaria are complex and may be caused by food allergy, drug allergy, environmental pollution