Image courtesy of Getty Images. A patient reports to the ED for evaluation of facial swelling and pain lasting 4 days. A 21-year-old man presents to the emergency department (ED) with left facial ...

COVID-19 is a respiratory disease caused by the virus SARS-CoV-2. It commonly causes coughing, fever, and difficulty breathing, but the symptoms can vary widely. Sometimes, COVID-19 may also cause ...

I've had a swelling under the right side of my jaw, which sometimes is painful. At first I thought it was just a swollen gland, but now I've noticed the swelling gets worse after I've had something to ...