If your left ear is stuffy, you can massage it yourself by rubbing around the auricle to promote blood circulation. If there is no improvement, you can go to the ear, nose and throat department of the hospital for a detailed examination, sometimes because of rhinitis ear blockage, it is recommended to take oral rhinitis Kang tablets or nasal abyss pills to improve the symptoms of stuffy ears, if it is due to poor circulation caused by the blocked ears, you can take oral cerebral clearing pills or tianmazu tablets, which can effectively dilate blood vessels to improve circulation. If the symptoms do not improve after active treatment, complete the nasopharyngoscopy if necessary to rule out any occupying changes in the nasopharynx, and if so, further radiotherapy or even surgery is needed.