Transient erythema, pruritus, or stinging may develop at the application site, typically resolving with continued use or brief treatment interruption
Effect of prebiotic andprobiotic supplementation on reduced pain in patients with fibromyalgiasyndrome: a double-blind, placebo-controlled randomized clinical trial
79 NovinscakT.BrcicL.StaresinicM.JukicI.RadicB.PevecD.et al (2008)
Going from a chubby kid to a super thin kid through my growth spurt, then not being able to gain any weight and struggling, being made fun of having all sorts of body dysmorphia as a child, trying to eat so much
So there may be a vicious cycle occurring in which symptoms of fibromyalgia prevent sufferers from sleeping at night, which then leads to lower levels of intracellular magnesium, which worsens symptoms even more