Nightshade can be powdered and taken directly, but for internal use it is usually recommended to be decocted and consumed. Nightshade is the stem or leafy vine of Polygonum multiflorum, which belongs to traditional Chinese medicine. It is sweet in taste, calm in nature, and belongs to the heart meridian and liver meridian. It has the efficacy of nourishing the blood and calming the mind (stabilizing the mind and soothing the emotions by nourishing the blood), dispelling wind and clearing the channels (dispelling the wind and clearing the meridians). It can be used in the treatment of insomnia and nightmares, blood deficiency and body pain, rheumatism and paralysis, and skin itching. This product can be used by decoction for internal use or externally by decoction to wash the affected area. Because traditional Chinese medicine is mainly through the decoction to play a role, soaking water to drink may be due to the release of active ingredients is limited, will affect the efficacy of the general is not recommended to directly powdered nightshade drink. The adverse reactions and contraindications of this product are not clear, and should be used reasonably under the guidance of a doctor.