An infusion made from the leaves of the Birch has been used as a diuretic and cleansing agent to the urinary tract. It has therefore been used to eliminate gravel and dissolve kidney stones and to treat cystitis and other urinary tract infections. This infusion can also be used to cleanse the body of excess water. In addition, it has been used to treat gout, rheumatism and mild arthritic pain. You can soak birch leaves in water for few hours and then use the strained solution for washing the skin as a treatment for these skin problems. It is also good for healing various other skin irritations.A bath with birch leaf water is a good way to strengthen the hair roots and prevent problems like dandruff.