D.J.
Are you rewarding his big boy successes with a popscycle or other treat? Are you praising his good efforts?I would keep at it and consider giving him lots of real cranberry juice in case he does have a bladder infection and make a doctor's appt. just in case he doesn't get over it...Don't confuse him by going backwards into diapers and then having to make all that progress all over again..YOu are almost there!