Green forsythia is forsythia fruit first ripe, color is still green when collected, habitually known as green forsythia, with clearing heat and detoxification (clearing the body of heat and poisonous evil), swelling and knot, evacuation of wind-heat efficacy, mainly used for the treatment of sores and carbuncles, wind-heat external sensation, fever (burning stinging pain in the urine is obvious, accompanied by urinary frequency and urgency, abdominal tract discomfort), astringent pain, and other symptoms. Green Forsythia is slightly bitter in taste and cold in nature, and belongs to the heart meridian, lung meridian and small intestine meridian. It is often used in the treatment of wind-heat and cold, carbuncle and gangrene (a kind of poisonous sores, an acute purulent disease that occurs on the surface of the body, limbs, and internal organs), dengtuoxin (an acute infectious disease, which can be seen in the skin reddened as if it was coated with pigment), scrofula (mainly refers to the cervical lymph nodes tuberculosis), and mammary carbuncle and other illnesses. It can also be used to treat symptoms such as warmth and heat entering the camp, high fever and thirst, the first signs of warm diseases, fainting and spotting, and feverish dripping and astringent pain. It is suitable for patients suffering from carbuncle, scrofula and phlegm nuclei (lumps swollen up like nuclei under the skin), the beginning of warm diseases, wind-heat sensation, and feverish drenching and astringent pain. Green Forsythia is cold in nature, therefore, it should not be used by patients with deficiency of spleen and stomach (weak and cold spleen and stomach), or those with Qi deficiency and pus clearing, and improper use may aggravate the condition. If use is required, it is recommended to use it under the guidance of a professional Chinese medicine practitioner or herbalist for identification of symptoms, and should not be used on one’s own.