It is due to viral infection specifically the paramyxovirus group.
any
What causes your lips to swell and go numb
what causes the left shoulder to swell
Solution causes a cell to swell by osmosis
Infections causes it to swell
genetics
The unusual birthday ritual in Fish Cheeks causes a vivid picture.
Mumps causes salivary glands to swell dramatically.
what causes broken vains in your face
Polio virus causes poliomyelitis.
maybe a cyst
How should I no!