A better analogy might be "fixing a heart attack with your fists". It might work, if the problem is fibrillation or a blocked artery and if the impact resolves

A better analogy might be "fixing a heart attack with your fists". It might work, if the problem is fibrillation or a blocked artery and if the impact resolves it… or it might just cause further injury without resolving anything. (Or it might resolve the heart attack, but then cause a stroke a few minutes later.)