Food For Dry & Dull Skin

Oatmeal is common folk remedy for irritated skin. A 2015 studyTrusted Source
 showed why grandmothers and great-grandmothers have been recommending this home remedy for centuries: It works.
Colloidal oatmeal has antioxidants and anti-inflammatory properties that soothe irritation. This remedy is especially effective if you’re seeking to relieve itching. After you’ve taken an oatmeal bath, make sure you moisturize your skin to lock in the barrier.
You can make an oatmeal bath at home. Use a food processor to chop oatmeal into a fine powder, then stir it into warm water. You can also try one of the many commercial products available to make an oatmeal soak.

https://www.healthline.com/health/home-remedies-for-dry-skin#oatmeal-baths