Flos Lonicerae, Flos Chrysanthemi, Flos Chrysanthemi Indici, Herba Taraxaci, Folium Isatidis, Radix Isatidis and Flos Trollii are all drugs for clearing away heat and toxic materials, and they are all suitable for making tea.

In addition, fresh lilies, Polygonatum odoratum and Phragmites communis bought in the vegetable market are all good medicines for nourishing yin and clearing heat, which are suitable for daily use. Fresh products have better heat-clearing effect and can be used together.