DefinitionFacial swelling is the build-up of fluid in the tissues of the face. Swelling may also affect the neck and upper arms.Alternative NamesPuffy face; Swelling of the face; Moon face; Facial edemaConsiderationsIf the facial swelling is mild, it may be hard to detect. To assist the health care provider in diagnosing the cause, it is important to note the following:Pain, and where it hurtsHow long the swelling has lastedWhat makes it better or worseIf you have other symptomsCommon CausesAllergic reaction (such as allergic rhinitis, hay fever, or a bee sting)AngioedemaBlood transfusion reactionCellulitisConjunctivitiswith swelling around the eye(s)Drug reactions, including those due to aspirin, penicillin, sulfa, glucocorticoids, and othersHead, nose, or jaw surgeryInjury or trauma to t