In clinical practice, we often see such patients, who have recently developed a sense of blockage in one or both ears, or blowing wind-like low-pitched tinnitus, or enhanced self-hearing due to exertion, poor sleep, cold or no obvious trigger; ear blockage and tinnitus often appear at the same time, and very few people also experience dizziness or vertigo, most of whom have no conscious hearing loss, and therefore neglect to go to the hospital in time, but think it is Most of them do not feel any hearing loss, so they neglect to go to the hospital in time, but think that they are “on fire” and will be fine after two days, so they often miss the best time to see the doctor. During the waiting period, there are often times when the above symptoms are mild and severe. Even when they go to the hospital, they are often misdiagnosed as secretory otitis media and given the wrong treatment such as anti-inflammatory drugs and nasal drops. Acute low-frequency sensorineural deafness is the disease that causes the above symptoms. What is acute low-frequency sensorineural deafness? Acute low-frequency sensorineural deafness occurs within a short period of time. The main symptoms are ear blockage, blowing wind-like low-pitched tinnitus, or enhanced self-hearing, and in a few cases, dizziness or vertigo. It is an otologic emergency and needs to be treated urgently at the first opportunity. How to treat? A low-salt diet and attention to rest, etc. Hormones and drugs to improve microcirculation, etc. What is the prognosis of this disease? With timely and correct diagnosis and treatment, the efficiency rate can be up to 80% or more. However, this disease is more prone to recurrent attacks and very rarely develops into Ménière’s disease, so it is important to raise awareness of this disease.