You should go to your doctor or the local emergency room immediately because there is a real risk of tissue injury, perforation, or infection. The rule of thumb is that if you swallowed a sharp object (fishbone, pin, toothpick, needle, etc.) or feel symptoms such as the sensation of a foreign object, pain and difficulty swallowing, or difficulty breathing, a medical evaluation is required. If the doctor can visualize the object in the back of your throat, then he can remove it manually. Otherwise, an endoscopic evaluation is required to remove the foreign object.