Staph infections should be treated by a doctor, who will prescribe antibiotics to help fight the infection. You can accelerate healing by soaking the wound in an Epsom salt bath.
Find a container wide and deep enough to accommodate the injured body part. You can soak your entire body in the tub, regardless of the size and location of the infection. Epsom salts are not poisonous.
Fill the container with hot water. It's better to fill it with water that is too hot and to wait for the water to cool while the salt crystals dissolve.
Don't overfill the container. Estimate how much water you'll displace when you put your foot/leg/body in, and leave enough room.
Pour in the Epsom salts. A full bathtub should take 1 to 2 cups of salts. Use the same ratio for smaller containers. Wait until the salts have dissolved.
Soak the wound in the salts for at least 20 minutes. More time won't help, but it won't hurt, and hot baths feel soothing.
Soak the wound at least 3 times a day. If symptoms persist, consult your physician.
Staph infections are extremely dangerous and can be deadly. Many are difficult to cure, even with strong antibiotics. Consult your physician when dealing with staph infection or any other infected wound.