You'd need rather more than one bee, and you'd need to be stung on a pretty regular basis. Bee venom has been found to have anti inflammatory properties, and some pain relieving effect if used in acupuncture points, but this would appear to be symptomatic rather than protecting you against having arthritis. Plus any benefits would have to be weighed agaisnt the potentially severe effects of allergy to bee venom. (And it's not particularly kind to the bee, either.)