Baby old back itch may be eczema, urticaria, ringworm, contact dermatitis and other reasons.
1. Eczema: eczema may be a variety of internal and external factors together lead to a skin disease, the specific cause is still unclear, can be seen in all parts of the skin erythema, papules and other lesions manifestations, and accompanied by obvious itch.
2. urticaria: urticaria is a kind of skin allergic disease mainly characterized by hives, is the skin mucous membrane vascular permeability increase and the occurrence of limited edema, internal and external factors can lead to, most of the patients will be accompanied by itchy skin.
3. Ringworm: ringworm is due to dermatophyte infection, dermatophytes in the skin colonization, growth, resulting in ringworm occurs, in the superficial skin surface can be seen in the red papules, with scales on the surface, and accompanied by itching symptoms.
4. contact dermatitis: body contact with some exogenous sensitizing substances, can lead to skin erythema, papules and other lesions manifestations, can be accompanied by edema, and itching symptoms.
The baby is always back itching, there may be other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.