Epimedium is usually decocted and taken internally, and there is no research related to the secret method of Epimedium for external use. Epimedium belongs to the yang tonic in the deficiency tonic, the family belongs to this product for the Berberidaceae plant pilose Epimedium, arrow leaf Epimedium, Wushan Epimedium, Epimedium, or Korean Epimedium, or the dry ground part of the Korean Epimedium. Epimedium is sweet, pungent and warm in nature, and enters the liver meridian and kidney meridian. It has the effect of tonifying the kidney and strengthening the yang (tonifying the kidney yang), strengthening the tendons and bones, and dispelling wind-dampness. It is long used in the treatment of impotence and spermatorrhea, kidney yang deficiency, impotence of the tendons and bones, paralysis of wind-cold and dampness (wind, cold and dampness invade the human body and lead to paralysis of limbs), and numbness and constriction. The adverse effects of Epimedium are not clear. Epimedium is contraindicated in people with yin deficiency and fire exuberance (deficiency of yin and essence in the body, resulting in hyperactivity of deficiency fire). If used, please use under the guidance of a professional Chinese medicine practitioner.