A, cold and damp paralysis type Most of the early stages of ankylosing spondylitis. At the beginning, the pain is mostly seen in the wandering joints (common in the joints of the lower extremities), and then gradually to lumbosacral and spinal pain, accompanied by soreness and heaviness in the limbs of the lower back, or stiffness and pain in the lower back in the morning, unfavorable activity, pain decreases after activity, and intensifies on rainy days, with thin white or white greasy tongue coating and sunken string or floating tight pulse. The treatment is based on the principle of tonifying the kidney, warming the governor, dispersing cold and opening up the ligaments, and most of them are treated with drugs such as Dulcimer, Dulcimer, Niubizi, and Sequoia. Damp-heat paralysis and obstruction Damp-heat paralysis and obstruction are mostly seen in the live-gong stage. Pain in the lower back and legs is common, with discomfort in the morning, activity by the Yang, the skin of the total affected area is hot to touch, the pain in the lower back increases at night, turning over is difficult, the pain can be alleviated after activity, there is no obvious fear of cold, but malignant heat, or accompanied by low-grade fever, the limbs like to be put outside at night, the mouth is bitter and thirsty, do not want to drink, constipation and urinary red, the tongue is red with yellow greasy coating, the pulse is slippery. The treatment is based on the principle of clearing heat and relieving dampness, promoting the circulation and relieving pain, and most of the drugs are selected from Atractylodes macrocephala, Phellodendron, Radix Achyranthes bidentata and Cortex.