If there is pain in the belly after intercourse, it is often due to chronic inflammation of the pelvis. In this case, the pain in the small stomach occurs when intercourse causes pelvic congestion, which stimulates the original inflammation. In this case, it is recommended to take the combination of cefuroxime plus metronidazole orally for one week. Since metronidazole can have an irritating effect on the intestines, it must be taken after meals, and it is recommended to use a hot water bag on the lower abdomen to promote blood circulation in the lower abdomen, which can promote the absorption of inflammation. In addition, the diet must strengthen nutrition, supplement protein, and eat more fresh fruits and vegetables, so as to facilitate the absorption of inflammation.