Found this on another forum.
Give it a try.
For itching relief i stumbled onto something nearly free and so far harmless. This works on poison ivy itch, ringworm patches (they are not little worms, but are places where a skin fungus has taken root), and itches from my allergy to strong detergents. Use the low heat setting of a hairdryer aimed at whatever place itches. It will itch like crazy for just an instant, and then it will feel like you finally scratched that itch for good. The relief lasts for 6 to 8 hours, far longer than any cortisone cream i have used. The low heat setting because i fear that if i used the high setting i might hold it there long enough to actually burn myself just because it feels so good to stop that itch.