In case of stomach pain during menstruation, oral ibuprofen is given for pain relief. Most patients can take it once for pain relief, but some may need to take it again. It is recommended to take it again four hours after the last dose to significantly reduce the symptoms of lower abdominal pain. It is also recommended to apply heat to the lower abdomen when you have menstrual cramps, which will improve the flow of menstrual blood by promoting blood circulation and improve the symptoms of menstrual cramps. After the menstruation is clean, you must go to the hospital to do the corresponding examination, because oral ibuprofen is only symptomatic treatment, and can not achieve the purpose of curing dysmenorrhea, only through the examination to understand the cause of dysmenorrhea, in order to target the medication or take certain treatment methods to give treatment, so as to completely relieve dysmenorrhea, in order to improve the quality of life of women.