We are on our way out the door. Thank you! His groomers right up the street. :)
Agree that it is probably the anal glands and they can abscess.
He needs his Anal Sacs/Glands expressed......Your Vet or groomer can do it....Left untreated, if they are full & cannot empty on their own, they will rupture.....Infection sets in quickly in this area, so your Vet will examine the fluid (After expression) to see if any infection is present.....If so, antibiotics are needed but normally not! This is very common in small dogs......
It's a simple procedure and only takes a minute.....My groomer charges $5 to have them done, my Vet charges $12......
Good luck & let us know how he's doing.....Karla