The Air Force Safety Center is a Field Operating Agency with headquarters at Kirtland Air Force Base, N.M.
The Finnish researchers are unsure why the use of a pacifier might lead to an ear infection, but theorized it may have something to do with the change in pressure equilibrium inside the ear caused by the sucking.
According to MayoClinic.com, a solution of rubbing alcohol and vinegar may help prevent the growth of bacteria that causes swimmer's ear. Mix one part white vinegar and one part rubbing alcohol in a small cup, then pour 1 tsp. of the mixture into each ear before and after you go swimming.