The ear is shaken by a loud noise because it damages the nerves in the inner ear, but many of them do not lead to hearing loss. At this time, it is only because of the damage to the nerves, which does not cause organic lesions, and the symptoms can usually be slowly relieved in about a week. However, if the ear is accompanied by hearing loss, it is clinically called blast deafness. At this time, treatment is still based on nerve-nourishing, vasodilating and microcirculation-improving drugs, such as methylcobalamin tablets, ginkgo biloba, vincristine capsules or with hyperbaric oxygen therapy, etc. Early detection and early diagnosis. The effect of early treatment is good, but clinically, if there is hearing loss, no more than 50% of the patients can recover their hearing completely.