Facial Cellulitis- HELP!!!

Hi, 

I was diagnosed with facial cellulitis about 3 1/2 weeks ago. Started Keflex, but it wasn’t working and it was spreading from cheeks up to forehead. I was put on daily IV of vancomycin for 7 days. Followed up with my doctor, said it looked better which I agreed but my forehead was still a bit swollen and a little pinkish. Forward a week....my forehead is still a bit swollen and still a little pink. I’m getting nervous that the infection didn’t go completely away!  I feel fine otherwise.  Does the swelling take time to go away?  If so, how long usually?  Also, have any of you gone to a dermatologist for facial cellulitis?  

Thank you!!

Kate