嚼口香糖。
或者捏住鼻子,然后使劲儿从鼻子往外呼气。这是潜水时,平衡中耳与外界压力的办法。其实在 起飞爬高过程中就可以这样做。
http://scuba.about.com/od/divemedic...ivers-Equalize-The-Pressure-In-Their-Ears.htm
pinch your nose closed and gently breath out against your pinched nostrils. You should feel something happen in your ears as they equalize. Ear pressure equalization is usually accompanied by a popping/clicking/“poof” sound and a sensation of fullness in the ears. If this technique did not work for you, alternate methods used to equalize the ears when diving are listed below.
• Valsalva Maneuver Pinch your nostrils closed and blow gently through your nose.
• Frenzel Maneuver Preform a very gentle Valsalva maneuver by breathing against pinched nostrils and swallowing at the same time.
• Swallow or Wiggle Your Jaw While keeping the regulator in your mouth, swallow or wiggle your jaw.