Had All Teeth Pulled Last Week, The Last 6 Were

Had all teeth pulled last week, the last 6 were pulled front left to was a little hard to get out?my back gums are swollen and hurt! Eye lid twitches. Should I use salt and water to rinse
My sister sad peroxide is a good swish for gums! Is that true? I'm use to grind my teeth. I woke up in terrible pain. I start taking 2/600 prescriber ibuprofen to stop the pain! A week I still can't eat anything! Jello, soup and cream of wheat? Oh yea it's its a well known Dentist school??