Rest for 24 hours after the extraction. Allow the wound to clot by switching out the gauze. Reduce swelling with cold packs or cold foods. Take any medicines as prescribed. Your dentist might prescribe antibiotics to fight any possible infections if the tooth is abscessed. Warm saline rinses can speed healing.  Eat soft foods rather than hard foods to foster healing. Do not suck liquids from a straw because that can cause blood clots to come undone.