Is there an average healing time for Cellulitis in the Lower Leg?

I was just hospitalized for 7 days with a cut on my leg that got severely infected and turned into cellulitis. From mid-shin to foot was bright red, maximally swollen and the pain was debilitating (could not step on it for 6 days). The swelling is almost gone but I still have a lot of pain in my ankle and the lower leg skin. I was sent home with continued antibiotics and told to take Tylenol (heh). Wondering how long this pain is supposed to last before an infection this serious heals.