You can pick it directly from the tree and use a brush to clean the hairs on the leaves in water. After cleaning, put the pear and rock sugar in a pot, add water and boil, and wait until it boils and simmers for a while. Drink, as long as you are thirsty, you can drink it. I also drank it like this before when I had a cough, but I didn’t add snow pear. Haha, I wish you a speedy recovery