Cleaning a baby's pacifier is important to keeping a child healthy, and parents who use their own mouths to clean it, may be giving their kid an extra health boost.

FOX's Colleen Cappon explain in today's "Housecall for Health":

New research finds babies whose pacifiers were cleaned with parent's saliva may have a lower risk of asthma.

A study from Queen Silvia Children's Hospital in Sweden shows when parents suck on their infants' pacifiers to clean them, mouth microbes transfer from parent to baby, helping boost the bacterial diversity of the digestive system.

Researchers say they need to analyze other possible causes, but the practice may be worth trying.

Housecall for Health, I'm Colleen Cappon, FOX News Radio.