My daughter swallowed the botthom tip of a balloon the rubbery part?

Foreign body: Did she have any choking when she swallowed the bottom tip of the balloon? If not likely to have gone into the esophagus. The balloon piece will pass through the gastrointestinal tract and end up in the feces. If she had any choking or coughing it is possible that the balloon piece went into the windpipe (trachea). That is more serious and needs immediate attention in the emergency room.