Hiya!
Im no scorpion buff... but as far as I know there is no antivenom for scorpion stings in SA (someone correct me if I'm mistaken?), and the stings are treated symptomatically, preferably at a hospital... with focus on managing and supporting breathing, swallowing reflexes, and managing pain.
The larger and healthier you are, the better off you are if stung, small children and the elderly are at most risk, symptoms include immediate, severe pain. and may be accompanied by muscle cramps and spasms.
The pain is described as electric, or intensely burning. and unfortunately it can last for hours, and sometimes a few days... the pain usually fades into constant pins and needles and hyper-sensitivity to touch, even just clothing rubbing the skin can hurt...
Luckily the mortality rate for scorpions in SA is very VERY low...
Im with Westley, keep a manicured garden, no rockaries, no rubble, no woodpiles... and just remember that you NEVER put your fingers where you can not see! and closed shoes are your friend
no bare feet for the kids and no playing outside after dark!