Of course. The function of Saussurea involucrata pad is to send effective components through the skin and meridians to the internal organs, and to regulate blood stasis and blood clots. You can use it at night without affecting your health. "Xuelian pad has the functions of bacteriostasis and itching relief, odor elimination, perineum care, heat-clearing and dampness-removing, wind-dispelling and itching relief.