Randomized controlled study on the clinical efficacy of Tiaozhi Tongmai granule in the treatment of atherosclerosis

INTERVENTION: Treatment group:Tiaozhi Tongmai granule;Control group:Tiaozhi Tongmai granule simulant; CONDITION: Atherosclerosis PRIMARY OUTCOME: Carotid ultrasound; SECONDARY OUTCOME: symptom score table of TCM;blood lipid;Inflammatory index;SF‐36;blood sugar; INCLUSION CRITERIA: ? Conform to the diagnostic criteria of carotid atherosclerosis; ? Conform to the standard of TCM syndrome differentiation; ? Middle aged and elderly people aged 45‐70 (including 45 and 70); ? If you are taking drugs to treat carotid atherosclerosis, you need to stop the drug for more than 4 weeks; ? Sign the informed consent form (see Anne X1) and volunteer to participate in the trial;