Gualou herbal medicines mainly include Trichosanthes trichosanthes (fruit), Trichosanthes trichosanthes kernels (seeds) and Trichosanthes trichosanthes (root). The processing method: When the skin of the fruit has white powder and turns light yellow, process it in batches. pick. Hang the picked trichosanthes in a ventilated place to dry, which is the whole trichosanthes; cut the fruit to the base of the melon, take out the seeds and pulp together, and dry them in the sun or oven to get the trichomonas rind; the melon pulp and Put the seeds in a basin, add plant ash and rub them repeatedly with your hands, wash out the melon pulp in water, wash the seeds and dry them in the sun to make the seeds. Trichosanthes trichosanthes (Trichosanthes trichosanthes) can generally be dug and harvested 2 years after planting, and those that are 4 to 5 years old are better. If they are not harvested for a long time, the powder content will be reduced and the quality will be poor. The best time to dig pollen from male plants is around the time of frost. Female plants are often dug after the Trichosanthes trichosanthes is harvested because it is not yet mature at that time. Remove the soil and reed heads from the dug roots, scrape off the thick skin, and cut the thin ones into short sections 10 to 15 centimeters long. The thick ones can be cut in half lengthwise, cut into 2 to 4 pieces, and dried in the sun.