Soaked forsythia suspensa flower has the clinical effects of clearing away heat and toxic materials, reducing swelling and relieving pain. It is a common Chinese herbal medicine with a slightly bitter taste. 1. Heat-clearing and detoxicating: soaking forsythia suspensa flower in water can play a good role in heat-clearing and detoxicating. Forsythia suspensa flower tastes bitter, slightly cold, and enters the lung, heart and small intestine, which can achieve good heat-clearing and detoxification effects. It needs to be taken orally correctly under the guidance of a doctor. 2. Detumescence and pain relief: Soaking forsythia suspensa flower in water can play a good role in detumescence and pain relief, which can generally be applied to headache, thirst and sore throat, and can also achieve a good therapeutic effect on clinical symptoms such as cough, mainly used to treat discomfort caused by wind-heat exterior syndrome.