Baking soda battles itches of all kinds. For widespread or hard-to-reach itches, soak in a baking soda bath. Add 1 cup baking soda to a tub of warm water. Soak for 30 to 60 minutes and air dry. Localized itches can be treated with a baking soda paste. Mix 3 parts baking soda and 1 part water. Apply to the itch, but do not use if the skin is broken.
Or, add 1 to 2 cups finely ground oatmeal to a warm bath (not hot or you might have breakfast for the next month in your tub) to ease your itches.