Guo, male, 42 years old, farmer. On a morning in December 1969, he developed a high fever, aversion to cold, severe headache, general body aches and pains, nasal congestion, runny nose, and was bedridden with anorexia. His family invited me for treatment. The patient was usually healthy, but at that time presented with an acute sexually transmitted disease appearance, flushed face, coarse breathing, redness on the chest and abdomen, dry mouth, not very thirsty, anorexia, body temperature of 40.1°C, thin white tongue coating. Upon examining his pulse, it was floating, tight, and rapid. He was diagnosed with "Taiyang (EX-HN5) cold-damage disease". At that time, I had not been practicing for long and was quite puzzled by the rapid pulse in Taiyang (EX-HN5) cold-damage disease. However, after careful consideration, I still diagnosed it as a case for Ephedra Decoction and decided to try one dose. The next day, the high fever subsided, aversion to cold disappeared, and symptoms like headache and body pain significantly reduced. The patient felt much more relaxed, had a good appetite, and regular bowel movements. I then prescribed another dose, and the disease tendency greatly diminished. After two more days of recuperation, he fully recovered.

Since then, I have paid close attention to wind-cold external contraction. Whenever encountering external contraction of wind-cold, with symptoms such as fever and chills, headache, body pain, and a floating, tight pulse, it is always accompanied by a rapid pulse.