Hot flashes and night sweats are typical kidney-yin deficiency symptoms. Effective herbs: ① Yukmijiwhang-tang (basic kidney-yin tonic), ② Jiknyeon-eum (severe yin deficiency), ③ Dangguibohyeol-tang (blood deficiency type), ④ Gamcho-Daejo-tang (anxiety with sweating). Combined with acupuncture (KI3 Taixi, SP6 Sanyinjiao, KI7 Fuliu, etc.), 80%+ report significant improvement. Effects often felt within 2–4 weeks. Cool environment, light clothing, and stress management help.