Splashed hot oil onto my right (onscreen typing) finger last night. Much painfulness! Initially I held it under cold running water for five minutes, this eased the pain considerably. But it kept me beside a water tap.
I have a battery-powered wine bottle chiller that circulates cold water via a pump in its base, so I shoved my hand into that for about 20 minutes in two ten minute spells.
There's a blister there now, which wasn't evident before the water treatment. Seven hours after the event, all pain has gone. Much relief, it was quite agonising for a bit.