Also, even in a person with stable MS, with no new lesions forming, symptoms can vary significantly and rapidly based on other factors, such as body temperature. The end result is that nobody, not the patient nor the physician, can predict the course of MS in any individual. The MS sufferer must live with the uncertainty of what the future will bring, as they are buffeted by unpredictable exacerbations and remissions. It is for this reason that MS patients are especially susceptible to the claims of new miracle cures, and why anecdotal information regarding such therapies are all but worthless in terms of forming reliable scientific conclusions. Often times such phenomenon begins with a single observation, one patient who, for example, receives bee sting for another ailment, or even accidentally, and then experiences a remission of their symptoms.
Human psychology does the rest.
It is human nature to associate two events which are temporally related and assume cause and effect. Eat a roast beef sandwich and then get sick, and most people will assume that the roast beef was bad, even though they may be sick from a virus they were exposed to a day earlier. It is important to realize that coincidences are much more common than one would naively believe, and that the assumption of cause and effect is perhaps the most common logical mistake that people make. So, once the story that a person was cured, or even helped, by bee venom gets around, many MS patients will seek out this new therapy out of desperation and hope. This is a reasonable and, one might even argue, rational response.