Silkworm sand refers to the dried feces of silkworms, from the perspective of traditional Chinese medicine, it is pungent and warm in nature, and belongs to the liver, spleen and stomach meridians, with the effect of dispelling wind and removing dampness, descending rebelliousness, harmonizing with the stomach and resolving turbidity, as well as invigorating blood circulation and removing blood stasis, and clearing the liver and brightening the eyes. First of all, it can be used for the treatment of rheumatic diseases, including rheumatoid arthritis, rheumatoid arthritis, ankylosing spondylitis, etc., such patients are often manifested as redness, swelling and pain in the joints, due to the silkworm sand has a very good effect of dispelling wind and removing dampness, it can help such patients to quickly relieve the pain in the joints, and it also has a certain effect of swelling on joints to reduce the swelling. Silkworm sand also has a certain and stomach turbid effect, for the middle jiao spleen and stomach, dampness stagnation of the patient has a very good therapeutic effect, often such patients manifested as stomach and epigastric distension discomfort, loss of appetite, or even nausea after eating, vomiting, the tongue tongue coating is more white and greasy, such patients will also be accompanied by sticky stool, tiredness, fatigue, dizziness, heaviness, and other symptoms. In addition, silkworm sand also has a certain effect of blood circulation and stasis, for bruises, women’s menstrual disorders, have a therapeutic effect. Another most important therapeutic effect of silkworm sand is to clear the liver and improve eyesight, which can improve the patient’s blurred vision and dimmed vision. In addition to internal use, silkworm sand can also be used externally, the silkworm sand into a medicinal pillow, often pillow can clear the liver and brighten the eyes, the eyes will be good.