It's not often you come across a claimed wonder gadget that works, but I've found one. Let me introduce to you the PAIN-AWAY pain relief pen. It really does what it says on the tin. Now it's often not the most present thing to use. But if you can stand it, the benefits are real. It's a fair work out for the thumb and forearm too. You need to administer 30, or more, pulses at a time. However, if your forearms start to look like those of @Tazz , you're probably over doing it. Available from many sources, but I paid about £25 on fleabay. Oh, I've had it a couple of years too.