Virginia Rady, 28, holds her old nebulizer at her home in Dallas. Rady was diagnosed with chronic persistent asthma at age 2. She underwent a series of three outpatient surgeries between December 2012 and February 2013 for a procedure known as bronchial thermoplasty. She says the procedure has changed her life, allowing her to remove her nebulizer from her bedside. Brandon Thibodeaux for NPR hide caption

itoggle caption Brandon Thibodeaux for NPR

Tapas Mukherjee shot this asthma education video in a field near his home. Tapas Mukherjee/YouTube hide caption

itoggle caption Tapas Mukherjee/YouTube

Sucking may be one of the most beneficial ways to clean a baby's dirty pacifier, a study found iStockphoto.com hide caption

itoggle caption iStockphoto.com

Otolaryngologist Sandra Lin uses under-the-tongue drops to treat patients with allergies at Johns Hopkins in Baltimore. Courtesy of Keith Weller/Johns Hopkins Medicine hide caption

itoggle caption Courtesy of Keith Weller/Johns Hopkins Medicine

Maria Texeira-Gomes holds a photo of her 5-year-old son, Matheo, who has struggled with asthma nearly all his life. Richard Knox/NPR hide caption

itoggle caption Richard Knox/NPR

The Centers for Disease Control and Prevention says the accidental release of chlorine gas at a Tyson Food plant could have been prevented with better communication. April L Brown/AP hide caption

itoggle caption April L Brown/AP