Whenever i run the right side of my stomach always pains.what can i do to cure it?

Running Pain: It is very common to get a pain in your right side when running; the cause is increased blood flow to the liver, which stretches the liver capsule, which is rich in nerves - and that hurts. Most runners call them side stitches. It generally means that you are pushing a little harder then your body is ready for. You need to work up to that speed and keep well hydrated.