There is currently no evidence suggest that bee sting therapy could be of benefit to people with MS.
A 2005 study of 26 patients used live bees stinging patients with relapsing-remitting MS three times a week.1
The researchers found no reduction in disease activity, disability, or fatigue, and no improvement in quality of life, so this therapy is difficult to recommend. Others have tried immunizing people with MS with bee venom extract.
In a small study of 9 patients, researchers found it to be safe -- but it did not seem to produce any benefit.2
References:
Wesselius T, Heersema DJ, Mostert JP, et al. A randomized crossover study of bee sting therapy for multiple sclerosis. Neurology 2005
Castro HJ, Mendez-Lnocencio JI, Omidvar B, et al. A phase I study of the safety of honeybee venom extract as a possible treatment for patients with progressive forms of multiple sclerosis. Allergy Asthma Proc 2005; 26:470-47