Shin splints
http://www.mayoclinic.com/health/shin-splints/DS00271
Treatment:
In most cases, you can treat shin splints with simple self-care steps:
Rest. Avoid activities that cause pain, swelling or discomfort — but don't give up all physical activity. While you're healing, try low-impact exercises, such as swimming, bicycling or water running. If your shin pain causes you to limp, consider using crutches until you can walk normally without pain.
Ice the affected area. Apply ice packs to the affected shin for 15 to 20 minutes at a time, four times a day for several days. To protect your skin, wrap the ice packs in a thin towel.
Reduce swelling. Elevate the affected shin above the level of your heart, especially at night. It may also help to compress the area with an elastic bandage or compression sleeve. Loosen the wrap if the pain increases, the area becomes numb or swelling occurs below the wrapped area.
Take an over-the-counter pain reliever. Try ibuprofen (Advil, Motrin, others), naproxen (Aleve) or aspirin to reduce pain and inflammation.