Causes of facial swelling include infections, allergies, and trauma or injuries, according to Healthgrades. Medical conditions such as facial cancer, obesity, heart failure, kidney failure and hereditary angioedema can also result in facial swelling.
Infections known to cause facial swelling include cellulitis, sinusitis, stye, mumps and orbital cellulitis, which is an infection around the eye, notes Healthgrades. Other infectious causes of facial swelling include tooth abscess, viral conjunctivitis and bacterial conjunctivitis. Allergic reactions that may result in facial swelling include hay fever, reactions to drugs such as codeine, and reactions to insect bites or stings. Traumatic or injurious causes of facial swelling include facial burns, facial surgery and oral surgery.
Facial swelling, also known as facial edema, is a condition in which the face becomes enlarged as a result of fluid accumulation in the tissues of the face, explains Healthgrades. It mostly affects the lips, eyelids and cheeks. Symptoms that may accompany facial swelling include facial and eye pain, eye itching, fatigue, headache and fever. Symptoms that may signify serious underlying conditions include itchy throat, breathing difficulty, a feeling of tight throat and protruding eyes. To avoid complications, individuals should seek immediate medical attention when any of these symptoms appear.