Oats are nature's magic potion for reducing skin irritation, and can be used in scrubs, masks and poultices to calm redness, itching and rashes. In this homemade oatmeal bath, they're ground into a flour and combined with rose petals for a dose of lush floral comfort (plus anti-inflammatory and antiseptic properties). While the oatmeal bath mixture is completely edible, we don't recommend actually eating it.