Although it is recommended not to wash your hair during menstruation, you can wash your hair when it is hot in summer in order not to affect your appearance or special circumstances, but you must pay attention to the fact that you must not wash your hair with cold water during menstruation. Wipe it up quickly after washing, dry it with a hair dryer, and don't go out to blow it to avoid a headache. It is best not to wash your hair two days before menstruation, the third day, and then don't wash your hair before going to bed at night, which is easy to catch a cold. Progesterone, also known as progesterone, is progesterone. It can be used to artificially regulate menstrual cycle, but progesterone is not everything. Progesterone is a prescription drug and should be used under the guidance of a doctor. Progesterone has side effects, so use it with caution.