According to Chinese medicine, hot flashes (a burst of heat) in the lower part of the vulva are mostly related to dampness-heat invasion, and need to clear dampness-heat, you can follow the doctor’s instructions to take gentian diarrhea liver soup. Dampness has a tendency to go downward and combine with heat, resulting in dampness-heat invasion. When dampness-heat is injected downward, dampness-heat invades the lower part of the human body, which manifests itself in men as dampness in the scrotum, eczema, localized reddening of the skin, impotence, frequent urination, painful urination, and so on; in women, it manifests itself as dampness-burning of the pubic area, abnormality of leukorrhoea, yellowish color underneath the belt, bad smell, astringency and pain in urination, and so on. When experiencing hot flashes in the lower yin, heat and dampness need to be cleared (removing heat and dampness from the body), and Gentian Diarrhea and Liver Tang can be taken, with medicines such as Radix Bupleurum Chinense, Radix Rehmanniae Praeparata, Radix Scutellariae Radix, and Radix Plantago Ovatae. Adverse effects are not exact, and pregnant women should use it with caution. Taking this medicine requires doctor’s guidance and assistance. If you have any of the above symptoms, it is recommended to take scientific treatment under the guidance of a doctor, and do not take the medicine blindly.