Itchy baby sleeping at night, consider the possibility of itching due to dry skin, it is recommended to avoid excessive washing, do not bathe every day in winter, bathing water temperature control at 34-36 ℃, avoid the use of alkaline bath products, while the morning and evening external use of mild non-stimulating moisturizing cream to keep the skin moist, can effectively relieve itching. You should pay attention to bedding, choose cotton products and diligently exposed to the sun. If there is a rash on the body, it may be considered as urticaria, which is related to hot and cold stimulation. It is recommended to take oral antihistamines, such as Desloratadine suspension for children over one year old, or Loratadine syrup or Cetirizine syrup for children over two years old.