Baby vulva red rub what medicine need to be based on the cause of judgment, may be the emergence of diaper dermatitis, psoriasis and other diseases, according to the different causes can be under the guidance of a doctor to be physical therapy, medication and so on. 1. diaper dermatitis: diaper dermatitis is mainly caused by the baby wearing diapers not replaced in time, resulting in baby urine and feces irritation of the skin, can be strengthened under the guidance of a doctor to take care of the skin, exposure of the skin can improve the symptoms. Clinically, there are infrared radiation and other treatment methods. 2. Psoriasis: can be manifested as buttocks, groin and other red spots of varying sizes, flaking and other manifestations, often with a family history. Need to be strictly under the guidance of specialized doctors to be drug treatment, commonly used drugs, including Dinaid cream and so on. It is recommended that if the baby’s vulva is red, should consult a doctor in time, clinically seborrheic dermatitis and other diseases can also lead to the baby’s vulva is red, usually need to pay attention to the baby’s vulva hygiene, to avoid infection.