Our children's health expert Dr. Michel Cohen knows that air travel with an infant can seem daunting, mainly due to the many myths of flying paired with the multiple dirty looks you'll get for having a child with you. If your baby cries in flight, there is unfortunately little you can do besides rocking and feeding if hungry. When nothing you do makes a difference, shamelessly let your infant exhaust themselves to sleep -- the free headsets should take care of the other passengers.
If you're worried that the change in cabin pressure will cause your child terrible ear pain and make her ears "pop" unless you diligently keep a nipple in their mouth, don't. These days, computers control cabin conditions, and problems are rare. For minor pressure changes, your child will just swallow her saliva and relieve the pressure without your assistance. If a little pressure builds up anyway, crying will open her Eustachian tubes and relieve it.
Even if your child has recently been diagnosed with an ear infection, don't automatically cancel your flight plans! Most ear infections are mild and short-lived. Just bring along some pain medication in case your baby experiences discomfort. Even the worst-case scenario, in which the eardrum bursts, is often misunderstood. It's only a remote possibility, and it can happen on the ground as well as in the air. And no matter where it happens, it's not cataclysmic; in the vast majority of cases, it heals perfectly.