I got stung by an arizona bark scorpion?

My aunt got stung by one on the tip of her finger. She went to the ER, and all they gave her was benedryl and sent her home. Usually, the pain is supposed to be pretty bad, but of all of the people I"ve met who have been stung (which is about 3 or 4), none of them ever had any major complications. Took benedryl, iced it, and that was it. You can go to the doc if you're nervous, but the reaction isn't all that uncommon.