My cat has a very bad abscess on his head. Was sick for a few days before we realized. A drain tube was installed about 30 hours ago. Lots of drainage still. Cat not very responsive, eyes not opening to look at me, mostly laying in one spot. As far as i can tell, he’s only getting up to urinate in the box. He drank some water last night. Had a very very small bite of food but hasn’t really eaten for days. Is this normal now that the tube is installed? He was given fluids and a antibiotic shot. I feel like the infection, not the antibiotics, is winning the battle. How long before I see progress or need to take him back to the vet? I’m thinking we should go back tomorrow 48 hours after having the tube installed if he’s still like this. Thoughts?