How can you reduce gum swelling?

Depends: Gum swelling must have an underlying cause to it. Looking for it and treating it will help resolve the swelling. If it's infection, an antibiotic may be needed. If it's associated with a procedure you may have had, you may need to call your dentist for advice. You can take an antiinflammatory medication, such as Ibuprofen or Naproxen (directions on the bottle) to begin with.

Remove the cause: Pain, bleeding, or as in your case swelling, is a red flag telling you your body is in trouble. Gum swelling usually caused by infection or trauma. Please see your Dentist to diagnose the cause of your inflammation and for the correct treatment protocol.