Have you ever sucked on your baby's pacifier to clean it? Many parents have. Babies drop their binkies all the time and if you're in a hurry or just figure a little spit-cleaning won't hurt, you're more likely to stick it in your own mouth and give it a quick once over.
A new study out of Sweden says the spit-cleaning technique may actually help your infant avoid eczema and asthma.
It was surprising that the effect was so strong, says pediatric allergist Dr. Bill Hesselmar of Queen Silvia Children's Hospital in Gothenburg, Sweden, lead author of the study published Monday in the journal Pediatrics.
The study involved 136 infants who used a pacifier in their first 6 months. 65 of the infants had parents that reported sucking the pacifier to clean it. In those children, both eczema and asthma were strongly reduced when they were examined at 18 months of age. At 36 months of age, the protective effect remained for eczema but not for asthma.
Scientists didn't know why the sucking on the baby's pacifier acted as a protector or whether it was filtering out germs. The technique didn't have any impact on respiratory illness, meaning that the babies were not more likely to get a cold or the flu from their parents. Common sense would dictate that if you have a cold or the flu or any other contagious condition, then it's not a good idea to suck on your baby's binky. Otherwise, maybe it's not such a bad idea.
Why is sucking on your infant's pacifier possibly helpful in preventing asthma or eczema in your child? Scientists hypothesize that tiny organisms in the saliva of the parents may be why. Parent's saliva introduces gut micoflora that live in the digestive tract of the baby. We know that if infants have diverse microflora in the gut, then children will have less allergy and less eczema,says Hesselmar. When parents suck on the pacifier, they are transferring microflora to the child.