Fear of cold is mostly considered to be caused by kidney yang deficiency according to the basic theory of Chinese medicine. Insufficient yin leads to heat and yang leads to cold. When kidney yang is deficient, yang is insufficient and its warming effect is weakened, so fear of cold occurs. In addition to this, there are often other manifestations of kidney yang deficiency, such as lumbar soreness, leg weakness, weakness, tinnitus, deafness, frequent night urination, urgent urination, frequent urination, incomplete urination, and even clinical symptoms such as impotence, premature ejaculation, and low sex life, etc. According to the above symptoms, it can be identified as fear of cold caused by kidney yang deficiency. In this regard, we can take oral medications to warm up the kidney yang, such as Jin Kui Kidney Qi Pill, Gui Shen Di Huang Pill, Right Return Pill and Three Kidney Pill.