To make an oatmeal bath, fill the tub with lukewarm (not hot) water and add 1 cup of finely ground oatmeal, stirring gently to release the starch. Soak in the bathtub for 15-20 minutes, then rinse your body with clean water. Pat your skin gently with a towel to dry, and follow with a rich moisturizer like FaceDoctor Beauty Cream.