Very good. I had a bad cough some time ago. It is not good to take any medicine. I went to the Oriental Hospital and was diagnosed with pharyngitis. It was much better after two weeks, but after three weeks of drinking, it was completely better in three weeks. In the second week, the main decoction and tea substitute will be opened, and only the decoction will be opened in the third week. The medicine there is quite good. I hope I can help you.