buu,
As long as you do not have direct contact and friction on the wound, you can do pretty much anything you wish. You will need to chance the dressing on the wound after you are done running.
Running may even increase the blood supply to the area, which may help with healing.
However, you do not want to expend too many calories running, such that you take that energy away from healing the wound. When you have open wounds, you need some extra calories and extra protein to get the wound to heal.
Also, if you smoke, you may want to quit till the wound is completely healed. Nicotine has a very detrimental effect on healing tissue. It disrupts the tiny blood vessels needed for wound healing.
Good luck.