Hearing aids worn for a long time, there is no harm to the human body, mainly skin pressure for a long time, may cause local skin pain and discomfort or inflammation of the external auditory canal and so on. 1. Local skin pain and discomfort: If the hearing aid is worn for a long time, local skin pressure for a long time, may cause pain and discomfort, you can not wear a hearing aid at night when sleeping. 2. Inflammation of the external auditory canal: If the patient’s body resistance decreases or is in the period of cold and flu, wearing a hearing aid all the time may change the environment in the ear canal, which is easy to induce inflammation of the external auditory canal. If wearing a booster leads to localized skin pain or inflammation of the external auditory canal skin, you can suspend the use of hearing aids, relieve the localized pain, cooperate with a professional doctor to treat the inflammation of the external auditory canal, and wear hearing aids correctly under the guidance of a professional doctor.