My 13 year old cat Saudi had a huge abcess between his shoulder blades and the vet had to sedate him and lance it and put him on strong antibiotics. At first she thought he may have been in a fight or something but when she shaved the area there was no puncture wound or anything. She said it was very deep. He wasnt walking at all when I took him in, I had to carry him to the litter box even, and when I picked him up late yesterday from the vet he was already feeling better, but it is still draining and will have to heal up from the inside out. It looks pretty bad. He look so relieved and so much brighter after they got all the infection out. I just hope he heals up quickly. Please send him good thoughts!