Feet sweating under the covers but cold is mostly caused by yang deficiency, qi and blood deficiency, spleen deficiency. If the spleen is the master of transportation (the spleen has the function of digesting food, absorbing food essence and water and transferring it to the whole body), if the spleen is deficient in qi and blood biochemistry, the transportation is not powerful, so the feet are not nourished, and then there will be the case of cold feet sweating under the blanket, which can be adjusted with the ginseng pills for strengthening the spleen. 1. Yang deficiency: When the body’s yang qi is deficient, the functions of warming, promoting and gasification will be reduced, resulting in loss of body temperature, so that the feet will feel cold under the blanket. In addition, yang deficiency can lead to the problem of spontaneous sweating (involuntary sweating during the day, aggravated by the slightest movement of the sweat), resulting in sweaty but cold feet under the covers. It can be regulated with medicines such as Jin Gui Ren Qi Wan and Gui Fu Di Huang Wan. 2. Deficiency of qi and blood: deficiency of qi can lead to loss of function, no power of transportation and transportation, no power to promote, so that the limbs can not be warmed, resulting in cold feet. In addition, a deficiency of qi outside the guard is not solid, the muscle surface is not dense, the couper (pores) loose, can not fix the sweat, resulting in spontaneous sweating. It can be regulated by medicines such as Yiqi Nourishing Blood Oral Liquid and Shiquan Daxin Granules. It should be noted that the foot in the quilt sweating, cold factors are more, so you should consult a doctor to clarify the cause, in the doctor’s evidence under the guidance of reasonable treatment, in order to prevent the body is not conducive.