My sweet Saint Odin had his amputation surgery exactly one month ago today on his right front leg.

He had stitches out about 12 days after surgery and had his first chemo session and did amazingly well.  He was walking around like normal and pretty much back to his old self.  

When he went to get his blood work done the next week, he passed with flying colors.  His pain meds ran out about the same time.  That was when he started excessively licking and chewing on his foot.  It got to the point where it bled and we took him to our regular vet this past Tuesday.  They bandaged it up and said to keep it dry and clean until Friday.  He just went in today for them to recheck his bandage and the paw was more inflamed.  They have us now soaking his foot twice a day followed by using a powder on it.  He is back on Tramadol (we put him on that the day after his blood test because we assumed that he still had some lingering pain bothering him), and our vet put him back on Carprofen and an antibiotic.  

It's so frustrating because he was doing SO WELL and acting like Odin again.  He was following us from room to room and just hanging out.  And then he started on his paw and doesn't really leave the bedroom except to do his business and to eat.  At least now since back on the Carprofen he will get up of his own accord to see if his dinner is ready yet rather than to just wait for us to come get him.

Has anybody experienced this before?  Odin does have a history of licking his paws and working at them (we assume because of allergies), and even once in awhile he would bleed a little bit (like a few drops trailing behind him).  But this was worse.  He's now also been given the big plastic cone, which of course makes him mopey and sad.  Is this all just residual pain?  Our vet seems to think it is, and now he's created this wound/sore which is making him want to gnaw on it more and creating a vicious cycle.