Rejection of chin implant? My face and neck became swollen, but the worst problem has been the sudden swelling of my lips!

Hello! I had an chin implant placed five weeks ago. (incision placed under the chin) For about 1 week ago i had a cold, since then i had a lot of problems. Last week i had to go to emergency, they think this was an allergic reaction?! One week has passed now and my lips are still very swollen, pale and small... Can someone tell me whats going on? Is my body rejecting this silicone implant?