Use of complementary and alternative medicine in patients with multiple sclerosis in Germany.

•The use of CAM for chronic diseases such as multiple sclerosis (MS) is an important issue for those affected.•A structured questionnaire was sent to real and web-based self-help groups for MS in Germany.•343 answers could be evaluated; 81.9% said they were using CAM, nearly half (44.8%) used it alternatively.•Patients with MS have a strong interest in CAM.