If there is a blockage of cerumen in the ear canal, the ear canal should be cleaned in time. In addition, there are many other reasons for this symptom, including air pressure change, neurological deafness and otitis media. 1. Air pressure change: driving with stuffy ears is often related to fast speed and change in air pressure going up and downhill, which is a normal phenomenon and can cause transient discomfort, so it is recommended to slow down the speed of the car when going up and downhill, or chew gum or open your mouth to relieve the symptoms. 2. The patient should perform vestibular function, pharyngeal tube, pure tone audiometry and acoustic conduction resistance examination to confirm the diagnosis and apply glucocorticoid-like drug impact therapy, and also apply medication to improve inner ear microcirculation; 3. Otitis media: due to bacterial infection, the patient’s inner ear mucosa is swollen and inflamed, and cilia movement is impaired. Patients should have their hearing reduced, deafness, tinnitus with stuffy ears and pus flowing from the ear canal, etc. Blood tests and C-reactive protein should be performed to confirm the diagnosis. Patients should be treated with oral antibiotics and glucocorticoids under the guidance of a doctor, or tympanic membrane puncture and injection, or tympanotomy if necessary.