Dilute Bleach Baths.
Making a bleach bath is so easy. It’s just a matter of putting a little bit of bleach into the bath water. The bleach kills bacteria like Staph aureus that grow on the skin. Studies have shown that bleach baths help children with Eczema.
-Add a 1/2 of a cup of 6% bleach to a full tub of water and a 1/4 cup of bleach if you are using a half tub of bath water. Use a scant teaspoon per gallon of water for a young child that you are using a tubbie.
Immerse × 5–10 minutes, then rinse, pat dry, and apply moisturizer immediately.
Other options that also work for kids with eczema are:
Dilute vinegar baths.
Baking soda baths. Adding a big handful of baking soda to water.
Epson salts. Adding Epson salt to water also works.
Reference
Amy Paller, MD, a dermatologist, on the American Academy of Dermatology website.