DD's dog bitten by Rattlesnake

Had a queensland that got bit on the tail right where it attached to her back side. We did not see it happen but she wouldn't leave the area alone. At first it just appeared to be a hot spot until we shaved some hair and could see the puncture wounds. We ran her to the vet and they gave her a shot to help with the swelling and I believe a shot of steroids but no anti-venom. She was fine after a couple days but had a large hard cyst like mass at the base of her tail the rest of her life.

I have heard that baby rattlers are more dangerous than adults as they have yet to learn how to control there venom and will inject the full amount.