Electrotherapy instrument is the use of electrical stimulation on the human body for the treatment of diseases, generally for the local treatment is more effective, especially for the elderly insomnia and hypertension and other diseases more effective. But it is not possible to cure all diseases, need to look at it dialectically, according to clinical symptoms feedback, some people in the use of electrotherapy apparatus after the emergence of sleepy, lazy symptoms, serious and even painful parts of the aggravation of some adverse symptoms, it is recommended that the clinical should be combined with the condition of the reasonable use of such medical instruments.