The Upper West Side is primarily residential, with 209,000 people / 1.9 square miles, meaning about 110,000 people per square mile / 42,500 per square kilometer. The most densely populated city in the world.
Angioedema is caused by an allergic reaction to something you've eaten, an insect bite, pollen allergies, or a medication you've taken. 1  It causes a swelling of the lips, face, and tongue, which usually occurs rapidly. It can also sometimes be accompanied by redness or bumps (hives). Due to the swelling, you may have difficulty talking. Angioedema can also cause swelling of the airway and difficulty breathing, which may be life-threatening.
Dr. Wayne Anderson Dr. Anderson. Not sure: In general, swelling of a body part is NOT a neurological syndrome. There are few conditions like CRPS that are neurological and can cause swelling. A sudden swollen upper lip may have non-neurological causes like allergy, acute reaction, or other. You should have it checked out just to be sure.