Had 8 teeth removed swelling has increased everyday since surgery?

Age 18, Female, just had 8 teeth removed including 4 wisdom teeth. laughing gas and sedation to remove teeth. surgery was on thursday and it has been four days since. antibiotics, hydrocodone, and one other prescribed medication is being taken properly. swelling has increased everyday since surgery and bruised through her cheeks. pain is extremely high and nothing helpds. Face has been iced properly and no change. should she go to the ER or is there any other tips we can take to lesson the pain.