It is not recommended to take Niu Huang Qing Stomach Pills during menstrual period. Niu Huang Qing Stomach Pills is a kind of proprietary Chinese medicine, the main ingredients are artificial oxalis, rhubarb, maitake, chrysanthemum, etc. Although the instructions of Niu Huang Qing Stomach Pills do not explicitly prohibited during menstruation, the use of medication during menstruation needs to be very cautious, and the nature of the Niu Huang Qing Stomach Pills is cold, so it is best not to take them during the period of menstruation. Niu Huang Qing Stomach Pill has the effect of clearing stomach and fire (removing stomach fire), moistening dryness and laxative. It is used for dizziness and dizziness caused by fire in the heart and stomach, sores on the mouth and tongue, swollen and painful gums, breast moth (related to tonsillitis in Western medicine), sore throat, constipation and red urine. It should be noted that people with yin deficiency and fire exuberance (deficiency of yin essence in the body and hyperactivity of deficiency fire) should be cautious of using it; avoid eating spicy and oily food during the period of taking the medicine; and be cautious of using it for the elderly, children and people with spleen and stomach deficiency and coldness (spleen and stomach weakness and coldness). If the body during the period of menstruation symptoms, should consult a doctor in time, under the guidance of the doctor to use the drug, do not take the drug, in order to avoid adverse consequences.