The edge of the tire was punctured beyond repair. It is not recommended to repair a flat tire on the side of the tire. The sidewall is the weakest part of the tire. If the tire is stuck by a nail and continues to be used, there will be a risk of puncture. For the sake of safety, it is best to replace the tire in time. The method of tire repair is as follows: 1, mushroom nail tire repair: the repair effect is good and more lasting, but the cost is relatively high and takes a long time, which is mainly suitable for relatively large wounds; 2, hot tire repair: it is very durable after repair, but heating requires high temperature and time, and it is easy to damage the tire structure if it is not mastered well; 3, rubber strip tire repair: no need to disassemble the tire, no need to do dynamic balance, convenient and fast; But the wound needs to be enlarged, and it may leak after a long time; 4, patch tire repair: convenient but not durable, suitable for smaller wounds.