Strawberry hemangioma: Also known as capillary hemangioma or simple hemangioma, it is a benign disease that does not affect the growth, development and health of the child (except for special areas), and the cure rate can reach 100% through liquid nitrogen cryotherapy. They usually appear not at birth, but a few weeks after birth, increase in size within a few months, and tend to occur on the head and neck. The lesions appear as one or several bright red or purplish red, above the skin surface, with clear boundaries, soft lobulated tumors, 2-4 cm in diameter, which do not fade easily when pressed. The lesions gradually increase in size over time and reach their maximum size within 1 year of age, after which they begin to fade gradually, with 75-95% of patients achieving complete or partial regression by the age of 5-7 years. During liquid nitrogen freezing treatment, there will be no conflict with other disease treatment, no interference with vaccination, and no contraindication for both the child and the mother. Depending on the size of the tumor, a cotton swab of different thicknesses is dipped into the liquid nitrogen and pressed directly on the surface of the tumor for a duration that depends on the age of the child and the depth of the hemangioma. Then the swab is removed and left to re-warm naturally and the tissue is edematous, which is a complete freeze-thawing process. Freeze-thawing 3 times is a course of treatment. The procedure was repeated 10 d after natural rewarming.