White peony and Radix et Rhizoma Glycyrrhizae make up Paeoniae Alba and Radix et Rhizoma Glycyrrhizae Tang. Taken with boiled water, they have the effects of acidity, sweetness, transforming yin, easing urgency and relieving pain (relieving urgent pain symptoms), and are suitable for leg and foot cramps and contracture pain, and pain in the abdomen. Paeonia lactiflora and Glycyrrhiza glabra Tang is from “Treatise on Typhoid Fever”. This formula is composed of Paeonia lactiflora and Radix glycyrrhiza glabra, which is sour and sweet to dissolve yin, and relieves pain in an emergency. It is suitable for treating contracture and pain of legs and feet caused by deficiency of yin and blood, loss of nourishment of tendons and veins, and pain in the abdomen. In this formula, white peony is sour and cold, nourishing blood and astringing yin, softening the liver and relieving pain (treating pain caused by deficiency of liver yin and liver blood); roasted licorice is sweet and warm, benefiting qi and strengthening the spleen, easing the pain and relieving urgency. Together, they have the effect of acidity and sweetness in transforming yin, easing the pain and relieving urgency. Licorice should not be used with Coriander, Glycyrrhiza glabra, Seaweed, Jingdaolu, Red Daolu. The adverse reactions and contraindications of the drug are not clear. Drugs must be used under medical supervision, do not blindly self-medicate.