The first thing to rule out is the possibility of ectopic pregnancy or pregnancy. If you rule out both of the above, you can take fenbendazole orally to relieve the pain, and hot compresses on the lower abdomen can also relieve the pain. Most of the pain is caused by endometriosis, so after menstruation, it is recommended to do an ultrasound examination to rule out the possibility of pelvic chocolate cysts and adenomyosis. If it is endometriosis, it is recommended that it can be treated with a Mannix ring, and it can be treated with Daphne, so it is important to find out the cause of the pain first, and then the next step can be to treat it according to the results.