2, it is best to add just boiled water, and then cover the cup cover to let it cover for a while, Houttuynia cordata can be soaked more thoroughly and its efficacy will be stronger.

3. When the dried houttuynia cordata is boiled and drunk, it needs to be put into clear water in advance and washed with clear water, and then soaked in clear water for 2-3 hours. After being soaked, the dried houttuynia cordata is taken out and put in a casserole, then boiled with a proper amount of clear water, and then boiled for 40 minutes with low fire. After being cooked, it is taken out and filtered, and the obtained soup can be used instead of tea, which can induce diuresis and detoxify, and can also clear away heat and detoxify.