Coldness and chills in the back may indicate Yang deficiency. If you feel unwell, please consult a doctor for diagnosis and treatment. The back of the body is the location where the dushi vein circulates, and the dushi vein is known as the “sea of yang veins”, which has the function of regulating yang qi in the whole body. Various reasons, such as prolonged illness and injury, or Qi deficiency, or living in a cold environment, or eating too much cold food, etc., can lead to a deficiency of yang qi, which is unable to warm up the back, resulting in the symptom of a cold back. Cold back caused by yang deficiency may also be accompanied by shortness of breath, fatigue, cold limbs, light thirst, spontaneous sweating (involuntary sweating during the day, aggravated by sweating with a little movement), and dysuria (unsmooth urination), etc. The treatment should be warming and tonifying. The treatment should be warming and tonifying yang qi, and can be taken under the guidance of a professional physician, such as Yiqi Wanyang capsule, Jin Gui Kidney qi tablets. Benefiting Qi and Warming Yang Capsule is effective in warming Yang and tonifying Qi, activating blood circulation. Adverse reactions of dry mouth and yellow tongue may occur. Note that it is contraindicated in pregnant and lactating women, and should not be used with caution in cases of yin deficiency and blood stasis, and should not be taken for a long period of time. Jin Gui Ren Qi Tablet, the effects are warming and tonifying the kidney yang (warming and replenishing the kidney yang qi), transforming qi to move water (promoting the operation of gases, thus promoting the operation of water and fluids). It is contraindicated for pregnant women, avoiding sexual intercourse, avoiding gas, and avoiding cold foods. It is not advisable to take this medicine together with Red Stone Resin or its preparations. It should not be taken at the same time with exopathogens. The above medicines should be taken under the guidance of a medical professional, and should not be used on one’s own. If there is any symptom of coldness and chills at the back, please seek medical advice promptly if necessary.