Taking a bath in these bath salts is just like taking a bath in our pain roll on oil. We soak epsom salt with the pain roll on oil for 3 days, stirring many times to insure all the oil is absorbed into the salt. Then we add the powdered milk and citric acid and just like that, you can bathe in our pain roll on oil! A 20 minute soak will give relief from sore, overworked muscles, fibromyalgia pain, skin conditions, a bad case of chiggers or poison ivy. For best results, drip dry, instead of toweling dry. You literally absorb the pain roll on oil into every pore on your body!