1, forsythia, there are clearing heat and detoxification, eliminating carbuncles and dispersing knots, evacuating the role of wind-heat. Commonly used in the heat and toxicity caused by the sores and canker sores, scrofula and phlegm, often with honeysuckle, dandelion, chrysanthemum and other drugs to clear the heat and detoxification of the same, if the sores and canker sores red, swollen and not yet ulcerated, can be used with peony, smallpox pollen, such as forsythia and detoxification of the soup. For scrofula and phlegm caused by phlegm-fire stagnation, it can be used with Xiaku Cao, oyster, Xuan Shen and Zhe Bei Mu. It can also be used for headache, eye redness and sore throat caused by wind-heat, often used with honeysuckle, mint and burdock, such as Yin Qiao San. It can also be used for urinary dribbling and astringent pain caused by heat knotting the bladder.

2, because of the bitter and cold nature of forsythia, it should not be taken by people with weak spleen and stomach, spleen and stomach cold.