ive in treating heart problems.""So I carefully made soup, added some soothing powder to it, and took it to Grandpa to drink...""I thought I was helping grandpa, but I didn't expect it would make his...chy or painful. There's no urge to scratch anymore...""The whole person feels much more comfortable, it's amazing!"They all looked at Ou Yan unanimously, as if looking at a world-renowned divine docto...