Cramping and pain in the left side of the small abdomen should be treated symptomatically according to the specific cause. If it is caused by urinary stones, including hydronephrosis or ureteral stones, you can drink a lot of water or apply antispasmodic drugs, including the application of atropine or progesterone, to relieve the spasm of ureteral smooth muscle and reduce abdominal cramping and pain. If a woman is caused by inflammation of the left ureter and pelvis, she should be given anti-inflammatory and symptomatic treatment according to the cause, applying antibiotics, including cefixime, cefaclor and other anti-inflammatory drugs for symptomatic support treatment, and also applying microwave physiotherapy and infrared physiotherapy at the same time to promote local absorption and reduce cramping and pain. If the pain is more serious, you can also apply appropriate pain medication for treatment. If you have pain on the left side of the abdomen, it is best to go to a regular hospital to find out the cause in detail and to carry out systematic and standardized treatment according to the cause.