The effective performance of drinking herbal medicine to drain cold is the obvious improvement of the following symptoms: the frequency of urination at night is obviously reduced, there is no obvious difficulty when urinating and there is no feeling of incomplete urination. The body feels warm, does not feel particularly cold, seasonal changes do not affect body temperature, cold symptoms in the lower extremities are significantly reduced, the feeling of feet feeling like stepping on ice does not occur, and the swelling of the feet is significantly better. Work is more energetic, fatigue is significantly better, and you can engage in physical strength and sports and other activities for a long time, all of which are signs that herbs are effective in draining cold.