Fried chicken might work, just mash it in. Tuna usually works well, or salmon, because they stink so much. Pieces of hot dog work well too. If she goes every other day without the pill then definitely consider the shot. Antibiotics just don't work given sporadically. You might try crushing it and see how that goes mixed in her wet food or something stinky. Just offer a little bit. You can feed her more after she takes the antibiotic. i would pick up all food and get her good and hungry. Good luck!