Congestion in the ear (which should be described as a feeling of tightness in the ear) can be caused by water ingress, cerumen impaction, upper respiratory tract infections, and sensorineural deafness. Except for water ingress, it is usually not self-curing and usually requires active treatment before the symptoms subside. 1. Water ingress: A stuffy feeling in the ear caused by water blocking the external ear canal, which will resolve itself after the water dries up if there is no secondary infection. 2. Cerumen embolism: Cerumen expansion caused by water leads to the embolism of the external ear canal, the cerumen will be discharged, and the stuffy feeling in the ear will be relieved or disappear. 3. Upper respiratory tract infection: It may lead to blockage of the tympanic tube, which may cause tinnitus and ear stuffiness, etc. After the upper respiratory tract infection is cured, the symptoms of stuffiness in the ear will subside. 4. Sensorineural deafness: may be due to heredity, certain drugs, chemical agents lead to toxic damage to the bit of the auditory nervous system, resulting in ear stuffiness, it is recommended that the patient go to the hospital in time for diagnosis and treatment, part of the need to use hearing aids to assist in the treatment. Patients usually pay more attention to rest, should ensure adequate sleep time, work and rest, if the disease is serious, it is recommended to go to the hospital in a timely manner, with the doctor active treatment.