Has anyone had tennis elbow? It hurts, and after dealing with it for 8 wks now. I went and got a cortisone shot, and that made it worse for the last few days... It seems like that side effect is wearing off, but how long will it take for the cortisone to kick in? I need my elbow, it sucks, cant really work, and I feel useless. Thank god I have one exp. employee, and one new trainee.. He need to learn alot, but it can relieve me for some heavy work at least. Any input on tennis elbow?