Homeopathy (2002) 91, 32–34
& 2002 The Faculty of Homeopathy
The author critically reviews a randomised controlled trial by homeopathy for chronic headache and an observational follow-up study of the same patient cohort. The results showed no di¡erence between homeopathy and placebo. The author believes that these results were a false negative due to inadequate homoeopathic treatment, particularly relating to the duration of symptoms and handling of homeopathic aggravations. Guidelines for future studies are proposed.