Hay. if you have a run-flat tire, be careful. The run-flat tire

is very strong. If something can penetrate it, that means the damage could be severe. And the design of the run-flat tire is to give the driver 50 miles withoud air in the tire. But the tire will have internal damage and will not be usable after 50 miles. If you are sure the tire did not leak much air during the time, a repair may be OK. Otherwise, the side walls of the tire is already damaged and the tire needs to be replaced.