The pain in the limbs after climbing, especially the pain in the lower limbs, is due to the large amount of lactic acid produced during the activity, which is not decomposed in time or transported out in time, and will accumulate in the muscles, forming the soreness in the lower limbs. After exercise, you can do physiotherapy, hot compresses and baking lamps to increase local blood circulation, after the local blood circulation is fast, it can take away the lactic acid and relieve the pain after exercise, you can also do massage and relaxation to reduce the accumulation of lactic acid. If the pain continues to occur, it may have led to soft tissue damage or other problems. If you exercise regularly, the body’s muscle resistance to lactic acid increases and will relieve the pain on its own.