Heiyuyuan ointment has a good effect on neck, shoulder, waist and leg pain, and just stick one or two stickers for some minor symptoms. It is mainly developed by combining precious Chinese herbal medicines with modern biotechnology. It is an external plaster, which is very convenient and safe to use. But they are all purchased according to the course of treatment. A course of treatment is 3-5 boxes, 1 box is 13 tablets. One tablet can be used for 3 days. 1 box price 175 yuan can be used for 39 days. You can get a full refund after using three invalid tablets, and the after-sales service is particularly good.