White peony is cool in nature, bitter and sour in taste, slightly cold, has the effect of tonifying blood and softening the liver, calming the liver and relieving pain, converging yin and collecting sweat, etc. It is suitable for the treatment of yin deficiency and fever, irregular menstruation, pain in the chest, abdomen and ribs, contracture of the limbs, diarrhea and abdominal pain, spontaneous sweating and night sweating, disintegration and leaking of the bands; red peony is slightly cold in nature, bitter in taste, has the effect of clearing away heat and cooling the blood, and activating blood circulation to remove blood stasis, etc. It is suitable for the treatment of warm poisonous hair spots, intestinal wind with blood, swelling and pain in the eyes and redness of the eyes, amenorrhea and dysmenorrhea. It is suitable for the treatment of warm poisonous spots, bleeding under intestinal wind, swelling and pain in the red eye, amenorrhea, dysmenorrhea, discharging of blood in the abdomen, impediment in the abdomen and hernia, and injuries from falls.