Li, female, 46 years old, was admitted due to "myocarditis". At night, she experienced chest fullness and shortness of breath, which could only be relieved by inhaling oxygen. Her pulse was wiry and slow, and her tongue was pale with a white coating. The diagnosis was chest yang deficiency with internal obstruction of yin mist. She was prescribed Cinnamon Twig minus Peony Decoction:
Cinnamon Twig 10g, Fresh Ginger Rhizome 10g, Chinese Date 12 pieces, Prepared Liquorice Root 6g
. After taking 2 doses, her symptoms improved. Then, 6g of Aconite Lateral Root was added to the original prescription, and after taking 3 more doses, she was cured.