Therapeutic method: pick fresh batch of leaves 10-15 pi, first with water, brush the back of the hair brush clean, with water to cover the batch of leaves, with a casserole, simmering away on a small fire, about 30 minutes, with the solution above (can not be below the dust) plus rock sugar, pears, simmering away on a small fire, you can consume it, many times a day, as a tea to drink can be.