Is Rehmannia glutinosa rhubarb? What are their respective roles? Is drinking boiled water harmful to people every day?

Radix Rehmanniae refers to Radix Rehmanniae, which has the effects of nourishing liver and kidney, nourishing yin, promoting fluid production and clearing away heat. Raw rhubarb purges fire to relieve constipation, and external use can play a role in sterilization and anti-inflammation; Drinking boiled water or soaking in water can clear away heat and nourish yin, such as people who often get angry. If the stomach is weak, loose stool, do not use it.