Like the vet said, I would guess what you felt was still part of the internal sutures that haven't disolved yet. I know it sometimes can take a while. I have had dogs where I could still feel the internal sutures for several months... just depends on how fast the disolve.

However, because of the way the incision looks, I would guess she MIGHT be having a reaction to the internal sutures - since you noticed the little bump... which probably got worse when your hubby kept kept messing with it to much.... so I would take her to the vet.

I know about a year ago at the vet clinic I used to work at, we had a dog like this come in, that was having a reaction to the internal sutures long after the incision was heal, the reaction was so bad they actually had to go back in and remove the internal sutures (everything was already healed) since they were obviously not disolving on their own like they should....

I'd take her to the vet and have to checked though...