For external use, mix 1 to 2 tablespoons in a bowl with water or apple cider vinegar. Apple cider vinegar is antibacterial which may help alleviate some of the underlying causes that aggravate acne. Add the liquid slowly until you develop a muddy consistency. This part is not as crucial and is really up to your preference. Apply the mixture to your face or any other area and let it dry for at least 15 to 20 minutes. Wash and feel fantastic!