hot shower for sunburn

A friend gave me some great advice about sunburns. She said I should take a hot shower with the water as hot as I could stand it. I hadn't heard of this before, and it just sounded painful. And it was. But it worked! The hot shower took the constant sting out of the burn, and it's been much better since. Who knew? (I'm guessing you shouldn't try this for very serious burns, I'm not a doctor, YMMV, etc, etc.)