Don't do it for a Double Chin - Frederick, MD

I had a small double chin. The doctor put several needles around the area. The needlees did not hurt that bad but 30 minutes later I was in severe pain. My neck swelled up like a baseball. I got a sore throat. I have been coughing up dark mucus. It is possible I am having an allergic reaction, or the injections were tooo close to my lymph nodes, causing them to swell and me to feel sick?