A feeling of pressure in the ears when passing through a tunnel may be caused by the relatively low air pressure in the middle ear when passing through a tunnel, and some people may also experience discomfort such as tinnitus and earache. It can be relieved by swallowing, yawning, chewing and other actions, and can also be relieved by using the Eustachian tube inflation method. 1. When swallowing, yawning, chewing, etc., the Eustachian tube will open, thus balancing the air pressure inside and outside the ear, which can effectively prevent tinnitus, pressure and other discomforts. 2. Eustachian tube inflation method, that is, by inhaling, drumming, so that the gas into the Eustachian tube, so that the air pressure inside and outside the ear balance, but also to relieve the ear pressure and other discomforts. In the tunnel can be through the above methods to relieve symptoms, but if the ear pressure caused by disease problems in the ear, should be timely to the regular hospital otorhinolaryngology to identify the cause of the disease, if necessary, to give targeted treatment.