Vitamin C for children is generally taken for about 10 days in a row, because most of the vitamin C contained in regular food intake such as fruits and vegetables is sufficient for human development, and if vitamin C deficiency or other related diseases are not fully established, it is generally not necessary to take large amounts for a long time. Vitamin C is generally used to strengthen the body’s resistance, for the prevention and treatment of various acute and chronic infectious diseases, or in the recovery period of diseases and the healing period of wounds and allergic diseases, and also to prevent and treat scurvy, so it must be applied under the guidance of a doctor when taking it.