The aim of this study was to evaluate the effectiveness of balneotherapy on
patients with fibromyalgia (FM) at the Dead Sea. Forty-eight patients with
FM were randomly assigned to a treatment group receiving sulfur baths and
a control group. All participants stayed for 10 days at a Dead Sea spa. Phy
sical functioning, FM-related symptoms, and tenderness measurements (point
count and dolorimetry) were assessed at four time points: prior to arrival
at the Dead Sea, after 10 days of treatment, and 1 and 3 months after leavi
ng the spa. Physical functioning and tenderness moderately improved in both
groups. With the exception of tenderness threshold, the improvement was es
pecially notable in the treatment group and it persisted even after 3 month
s. Relief in the severity of FM-related symptoms (pain, fatigue, stiffness,
and anxiety) and reduced frequency of symptoms (headache, sleep problems,
and subjective joint swelling) were reported in both groups but lasted long
er in the treatment group. In conclusion, treatment of FM at the Dead Sea i
s effective and safe and may become an additional therapeutic modality in F
M. Future studies should address the outcome and possible mechanisms of thi
s treatment in FM patients.