Proper Techniques for Using Hot Water to Soak Feet in Winter
When cold weather arrives, many people enjoy foot-soaking for health, believing hotter water yields better results. This is incorrect. Foot-soaking water should not be too hot—ideally around 40°C.
This is because excessively hot water causes excessive dilation of foot blood vessels, diverting more blood to the lower limbs and reducing blood supply to vital organs like the heart, brain, and kidneys, increasing the risk of cardiovascular and cerebrovascular diseases. Furthermore, high temperatures can dry out and crack the foot’s skin. Diabetic patients are especially vulnerable—extremely hot water may trigger peripheral neuropathy, impairing nerve sensitivity to temperature and leading to burns.
Foot-soaking duration should be controlled—ideally 15 to 30 minutes. Prolonged soaking increases cardiac strain. Those with heart or cerebrovascular diseases who experience chest tightness or dizziness should stop immediately. Avoid soaking within half an hour after meals. When using medicinal herbs for foot-soaking, do not use copper basins or other metal containers, as unstable chemical components may react with tannins in the herbs, compromising efficacy.