Lower abdominal swelling and discomfort just after menstruation can be relieved by medication. But when you use gynecological drugs, you must determine whether there is pelvic fluid, whether there is abdominal fluid. Need to go to the hospital registered gynecologist to do gynecological ultrasound, to determine whether there is any abnormality in the pelvis. If there is pelvic fluid, suggesting that there is pelvic inflammation, you can take KunFuKang capsule or pelvic inflammation net capsule, or oral gynecological tablets, plus anal plug sunflower KangWu anti-inflammatory suppositories, anal plugging, treatment of lower abdominal distension, pain. If the ultrasound examination does not suggest any abnormality, you can’t blindly use medication, you can relieve the lower abdominal distension and discomfort by hot compresses or massages, and you should also exclude the intestinal function disorder.