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.
Likey allergic rxn: Allergic reaction to a number of things could cause swollen lips with associated itchy (sic). Angioedema can cause swollen lips. Important to note if localized to one area or involves the upper and lower lips diffusely. ...Read more.
Causes Of Swollen Lips. Though swelling may happen due to any trauma to the soft tissue, there are various other reasons for swollen lips. Most of the times, swollen lips are accompanied by cuts and bleeding too, which makes it difficult for a person to eat, drink or talk properly (1, 2, 3).