Many things can cause facial swelling, including allergies, infections, and underlying medical conditions, Dr. Manzana says. Some causes bring additional symptoms besides swelling. Here’s a ...

MRS is a rare disorder that causes recurrent facial and mouth swelling, facial paralysis, and problems with your tongue. Treatment with corticosteroids and occasionally surgery may be helpful.

The most common causes of facial swelling include, according to the Cleveland Clinic: Allergic reactions Drug reactions Facial trauma, including injuries like a broken nose Infections that may ...