What medication can quickly regulate cold uterus (gong han)?

Regulating "gong han" (uterine cold) should focus on warming the meridians, dispelling cold, warming the uterus, and relieving pain. Commonly used effective medications include Aifu Nuan Gong Wan, Jin Kui Shen Qi Wan, Shao Fu Zhu Yu Wan, Wen Jing Wan, and Gui Zhi Fu Ling Wan. A detailed analysis is as follows:

1. **Aifu Nuan Gong Wan**: Its main functions are regulating qi and nourishing blood, warming the uterus, and regulating menstruation. It is suitable for uterine cold caused by blood deficiency with qi stagnation and deficiency-cold in the lower jiao, manifesting as menstrual irregularity, dysmenorrhea, cold pain in the lower abdomen, aversion to cold, and cold limbs. It quickly alleviates discomfort by warming the uterus and regulating qi and blood circulation.

2. **Jin Kui Shen Qi Wan**: Known for warming and tonifying kidney yang and promoting qi transformation to eliminate fluid retention. It is indicated for uterine cold due to kidney yang deficiency, presenting symptoms such as soreness and weakness in the lower back and knees, aversion to cold, cold limbs, infertility caused by a cold uterus, and clear, copious urination. By replenishing kidney yang, it warms the uterus from the root cause and addresses the underlying deficiency.

3. **Shao Fu Zhu Yu Wan**: Functions to warm the meridians, activate blood circulation, dispel cold, and relieve pain. Suitable for uterine cold caused by cold-induced blood stasis, characterized by abdominal pain during menstruation, poor menstrual flow, blood clots, and a sensation of heaviness and cold pain in the lower abdomen. It effectively removes cold pathogens and resolves blood stasis, rapidly reducing menstrual pain.

4. **Wen Jing Wan**: Mainly functions to warm the meridians, dispel cold, nourish blood, and regulate menstruation. Indicated for uterine cold due to deficiency-cold in the lower jiao and insufficiency of qi and blood, with symptoms including delayed menstruation, light flow with pale color, cold pain in the lower abdomen, and cold limbs. It simultaneously addresses cold and blood deficiency, making it ideal for regulating deficiency-cold type uterine cold.

5. **Gui Zhi Fu Ling Wan**: Promotes blood circulation, resolves blood stasis, and gradually dissolves abdominal masses. Suitable for cases of uterine cold accompanied by blood stasis obstruction, presenting with severe dysmenorrhea, menstrual blood with clots, stabbing pain in the lower abdomen, or presence of abdominal masses (zheng jia). It improves blood stasis caused by uterine cold through activating blood and unblocking the channels.

When using these medications, attention should be paid to contraindications and precautions. Selection should be based on the specific pattern differentiation of uterine cold, and medication must be taken strictly under medical guidance. Additionally, combining drug therapy with lifestyle adjustments—such as keeping warm and avoiding raw or cold foods—is essential to ensure both safety and effectiveness of treatment.