Wearing earplugs for a long time to sleep is not very good, because wearing earplugs for a long time is especially likely to lead to congestion and inflammation of the mucous membrane of the ear canal, which may lead to ear pain. Sometimes the pressure in the middle ear cavity may change after wearing earplugs, and the eardrum may be sunken in, causing a feeling of stuffiness and swelling in the ear, tinnitus, and even hearing loss. In life, patients should wear ear plugs intermittently and avoid wearing ear plugs for a long time to effectively reduce infections in the middle ear cavity or external ear canal. The ear plugs should be replaced regularly to avoid prolonged application of an ear plug, which is particularly prone to the growth of many bacteria, aggravating the patient’s ear canal mucosal congestion and infection. If an infection occurs, patients should no longer wear ear plugs and must actively treat otitis externa to avoid causing other discomforts.