It is best not to use the moxa patch during menstruation. The main effect of the moxa navel patch is to regulate qi, invigorate blood, dispel wind and dispel cold, and also has the effect of warming the uterus. We can use it to treat irregular menstruation, cold and dampness in the uterus and cold hands and feet, and women with these symptoms can use the moxa navel patch. However, because of its effect on Qi and blood, it is better not to use it during menstruation, because it can make our menstrual flow more. However, if a woman’s menstrual flow is relatively low, she can use the moxa patch to regulate the Qi and invigorate the blood. It is important to note that if there is a wound or infection in the area where the medicine is applied, it should not be used. If there is redness, swelling or itching in the affected area after use, it means that there is an allergy to this medicine and it is recommended to stop using it.