This issue of the Journal contains a remarkable range of clinical studies of homeopathy involving animal models, both therapeutic and experimental. Several of the results, if confirmed, have important clinical implications.Two of our papers involve the effects of homeopathic Hypericum perforatum on recovery from surgically induced experimental trauma in rats. Mohammadi and colleagues, in a high quality experiment, compare the rate of healing of transected sciatic nerves in rats. The nerve ends were inserted in a silicone tube and the animals treated orally with Hypericum 30c or succussed control, showing marked functional and histological benefit in the Hypericum treated group, compared to control. If these results are confirmed the clinical implications are obvious. Castro et al treated surgical skin wounds in rats with gels containing Arnica and Hypericum in low potency. Microcurrent improved the rate of wound healing, and there was a non-statistically significant trend to greater improvement when it was combined with Arnica or Hypericum gel.