Expensive branded nasal sprays cut the length of a cold by at least three days, a major trial found — but a cheap homemade alternative ... with a simple saline nasal spray.

Rinsing your child’s nose with saline can help keep their nasal passages open by clearing out thick or dried mucus. It can help relieve symptoms of allergies, sinus infections, or colds.

“For people looking for help, the U.S. Centers for Disease Control (CDC) Guidance, ‘Relief for Symptoms of Colds and Coughs’, ‘instructions’ say to ‘use saline nasal spray to relieve ...