People with cardiac pacemakers, implanted defibrillators or any other implanted metal or electronic devices; people with local acute suppurative inflammation, bleeding tendency, and malignant tumors under the jaw; people with severe cardiopulmonary disease and cardiovascular problems Crowds; People who are allergic to electrode pads and electric current due to nasal cavity disease; People who have skin ulcers on the sticking place; Women who are pregnant or giving birth; Children under 16 years old.