I have had a swollen face for a little over a month now. People hardly recognize me. I first thought I was allergic to keflex. But my doctor told me he thought it was sinusitis. I had a cat scan done 5 days ago and it showed I was completely blocked on my right side. I went to ENT yesterday and it showed clear. Now I do not know why I look like a chipmunk. We ruled out sinuses and side effects of antibiotics