re:As a feeble jest, if you knock over a bee-hive, you can get a stinging rash.

and if you walk through nettles, you'll also get a stinging rash.

'Dock'-- a common name for another common weed,(i don't know the proper name!) when crushed, will exude a watery sap the will relive the sting almost immediately, (Nettles in, Dock out!)

thistles too are bristled with fine barbs that sting the skin as they peirce it. I don't know any cure for there barbs! (but both my son and i have cut thistle blossoms for bouquets!)