Alternative hormone-free treatments are available -- herbs such as blackcohosh, for example, or chamomile -- but there have been few scientific studies.
Many menopausal women who are afraid that hormone replacement therapy could increase their risk of breast cancer have turned to the herbal supplement blackcohosh an alternative in recent years.
But she points out that the study also found that women in both the placebo and blackcohosh groups experienced mild relief up to two fewer hot flashes per day.