Rhubarb can be infused into water for drinking, and it is recommended to use rhubarb properly under the guidance of a doctor. Rhubarb is bitter in taste and cold in nature, with the effects of clearing heat and fire (removing heat and fire from the body), cooling the blood and detoxifying the toxin (referring to the treatment of blood-heat and toxin impurity), catharticizing and attacking the accumulation of stagnant blood, expelling stasis and clearing the meridians (removing stasis of blood and clearing the meridians), and inducing dampness and removing yellowish coloration. When used raw, rhubarb has a stronger diaphoretic power. However, if rhubarb is only used as a tea, its therapeutic effect is not obvious, and it cannot be used as a substitute for medication to treat diseases. Rhubarb is bitter and cold, and can easily damage stomach qi, so it is not recommended for those with a weak spleen and stomach. Women should not use rhubarb during pregnancy, breastfeeding or menstruation. It is recommended to consult a doctor in time, do not self-medicate.