You can wash your hair on the first day of your period, and during your period, you can wash your hair and take a shower every day as usual. In winter, it is recommended to dry your hair with a hairdryer after washing to avoid getting cold. It is recommended to take a shower during menstruation, not a tub bath, because menstrual blood will contaminate the bath water, and because the opening of the uterus, it will also be easy to bring bacteria into the uterine cavity, causing inflammation. Perineal hygiene is very important during menstruation because menstrual blood can easily contaminate the vulva. Change sanitary napkins and wash underwear regularly every day, and also wash with water properly 1-2 times, and take more rest if you have uncomfortable symptoms.