Longan parasites, also known as cedar parasites, can be used to treat sore back and knees, dizziness, and hair loss, but there is no such thing as a better cure for any disease. Cedar parasitoid is the stem and branches of Sphagnum, a plant of the genus Sphagnum in the family of Sambucus, which is sweet and bitter in flavor and flat in nature. It has the efficacy of dispelling wind-dampness, tonifying the liver and kidney, activating blood circulation and relieving pain. Clinically, it can be used to treat lumbar and knee pain, dizziness, hair loss, bruises, hemorrhoids, cough, coughing up blood, dysentery and so on. It should be noted that the adverse reactions, contraindications and precautions of Cedar parasites are not yet clear. If there is any discomfort, it is recommended to consult a doctor promptly. Cedar parasitic should be applied under the guidance of a traditional Chinese medicine practitioner, do not self-medicate.