Your hormones can fluctuate during cleansing quite a bit, so we would give it about 3 weeks for the hot flashes to dissipate. At that time if they continue, it may have revealed a hormonal imbalance with estrogen that could actually be helpful and you'd want to consider supplementing with Femmenessence MacaHarmony (the yellow variety- http://www.gutthrivein5.com/Femmenessence-Macaharmony) in the morning and 5-HTP (http://www.gutthrivein5.com/5-HTP) before bed which should regulate hormones and neurotransmitters within a few weeks. For hot flashes, 5-HTP usually works at around 200mg at night before bed if it's related to menopause or perimenopause.