New research shows that hospital stays for infants diagnosed with bronchiolitis, or inflammation of the lungs, and treated with nebulized 3% hypertonic saline (HS), a commonly used, off-label therapy, were not shorter than hospital stays for infants who received normal saline solution. Both treatments are liquid salt solutions that are vaporized and administered through a mask; however HS has a greater salt concentration and is believed to more effectively hydrate the air passages, decrease fluid accumulation and improve lung function.