<human>: I have pain on my right side about the waistline. It also hurts on my right side in my stomach area. I thought I had a bladder infection and my doctor prescribed Sulfamethoxazole - tmp 160mg for 10 days. It seemed to relieve it, but the pain perists. Thanks, Nancy
<bot>: Hi Nancy. Thanks for your query. The cause of the pain above the waistline on the right side has to be diagnosed on physical examination by a Surgeon and diagnostic tests undertaken to prove or to rule out the probable causes. The probable causes are:Right kidney infection / impacted stone in pelvi-ureteric junction. Gall bladder stones and / or infection. Liver pathology. Colitis on the right side. Appendicitis particularly in retro-cecal position. And so on. I would advise you the following Get the blood, urine and stool tests done. Ultrasonography as a preliminary survey to find the cause. CT scan of the abdomen and other investigations to confirm. Take a proper course of an antibiotic, metronidazole and symptomatic treatment. You may need an additional antibiotic with the Sulfamethoxazole.