Oh I'm so sorry you are going through this with Hogan. Sorry I don't have any experience with tail pocket problems or smell, as my two guys don't have a tail pocket. Somebody with experience will come along shortly and be able to give you some advice and suggestions. I just wanted to send you and Hogan love hugs and prayers that he feels better soon, and you find a solution to his smelly tail pocket. I have read that other members use wipes daily to clean out the pocket, make sure that it is dry, and some bully owners use a powder like Goldbond to keep it dry. A last resort is to have surgery to remove the tail, but that is usually only when there is a lot of infections and nothing else has worked. I hope you find something that works for him.