[Botulinum toxin in pain therapy].
In pain therapy we are repeatedly faced with the problem that the available treatment methods are inadequate. For years we have also been using botulinum toxin especially for myofascial pain and chronic headaches. Unfortunately, the assessment of its efficacy in both everyday clinical conditions and in studies is very variable. A final evaluation is not yet possible. Until the results of current studies are available, the use of botulinum toxin should be limited to clinical studies and to particular cases at specialized centres.