Though most people reserve bleach for removing stains from clothing, a study in the journal Pediatrics says it also may offer relief to children who have the skin disease eczema.

There's also not enough data to recommend probiotics to kids for constipation, irritable bowel syndrome or Crohn's disease, or to prevent asthma or eczema in children, the AAP reports.

This suggests, say the researchers, that widespread use of probiotics by pregnant and breastfeeding women might be worthwhile for curbing rates of childhood eczema.