The fact that CR is getting IV antibiotics is great to hear because it means they are treating the cellulitis aggressively, and because it was caught early he will be fine despite being sicker than a dog right now. IV antibiotics kick in very quickly, and although they make the patient feel out of it for about 48 hours, the regimen is as effective as treatments get. They are attacking both the strep and the staph, and he'll be right as rain soon. Hold that thought.