Forsythia flowers are not generally used for medicinal purposes, forsythia medicinal parts of the fruit, and its bubble water to drink has a heat detoxification (clear the body of heat and toxicity), swelling and knot dissipation and other effects. But the effect of soaking water is limited, generally not up to the role of treatment. Forsythia has the effect of clearing away heat and removing toxins, subduing swelling and dispersing knots, and evacuating wind-heat. The main treatment of sores, scrofula (mainly refers to the neck lymph nodes tuberculosis) phlegm nuclei (subcutaneous swelling such as the nucleus of the tuberculosis), wind-heat externals, the beginning of the warm disease, hot shower (burning stinging pain in urination, accompanied by urinary frequency and urgency, abdominal discomfort) astringent pain. It is not suitable for those with deficiency of spleen and stomach (weak and cold spleen and stomach) and Qi deficiency and pus clearing. After drinking forsythia in water, if there is any discomfort, it is recommended to stop using it and seek medical attention promptly.