 [ Symptoms ] how long does it take antibiotics to flush from your system after you stop taking when taking cefdinir 300 mg for a sinus infection i developed diarrhea and can not seem to stop it nurse line said to stop taking and it would take some time to get it out of my system how long is that time [ Disease ] most helpful answer having a retained object in the rectum is no laughing matter i understand why you would feel scared women face similar feelings about retaining tampons so you definitely are not alone if you are very concerned that the condom is still inside you your best bet is to seek medical attention let me assure you any health care professional worth their salt will treat your problem with dignity and concern you need not feel embarrassed about this if an otherwise healthy person were constipated and retaining stool in the rectum the obvious answer would be to use a liquid based laxative such as magnesium citrate or polyethylene glycol brand name miralax however anyone with any medical condition compromised immune system or dehydration should not use these preparations without medical supervision if you experience any abdominal bloating vomiting or fever please seek medical attention immediately good luck to you