Generally speaking, it is used to treat cholecystitis and cancer. I come from the countryside. I have a bad voice and a bad cough. Later, I went to the countryside to dig a lot of bitter vegetables, fried them and soaked them in water, and my throat gradually became smoother. So I can stop coughing, but I only need to maintain it for a long time, and it is difficult to work for a while. But you should know that Chinese medicine needs to be infiltrated slowly to have a great effect, and many encyclopedias do not write about treating cough.