Aerosol medications, popular in treating asthma, soon will be used to treat or prevent many more illnesses, predicts Dr. Juraj Ferin of the University of Rochester Medical Center.

"Take vaccines, for example. Instead of getting flu shots, patients may inhale a puff of aerosol vaccine. Or, diabetes patients may take their insulin through an aerosol spray," Ferin said.An advantage of aerosols, he said, is that they can target medication at a specific area of the body, such as the nose, throat or lungs. Therefore, a drug's unwanted side effects can often be minimized with aerosol therapy.