If a girl has just gotten her period during puberty, it is best to pay attention to the following points: 1. Be sure to change sanitary napkins regularly to avoid bacterial reproduction and inflammation of the vulva. 2. The sanitary napkins used should preferably be made of cotton to ensure good local ventilation. 3. Keep the vulva clean. Although it is recommended to wash the vulva with warm water twice a day during menstruation, it is not allowed to wash the vagina to ensure the cleanliness of the vulva.4. During menstruation, special attention should be paid to the diet, not to eat frozen drinks, fruits or food just taken out of the refrigerator to avoid causing pain in the lower abdomen. If the menstrual cycle exceeds 8 days, it is an abnormality and it is recommended to go to the hospital for the appropriate examination.