Hot compress salt cannot be used when it is charged. Using it when charging may lead to the danger of electric leakage and electric shock. The electric hot compress salt bag contains some sea salt, and some physiotherapy bags will contain some wormwood. Sea salt and wormwood can effectively promote the blood circulation of the body after heating, and can play an anti-inflammatory and analgesic role in the place where the patient is located. \x0d\ For more information about hot salt charging, please visit:/ask/962d5d1615825772.html? Zd view more content