Why do all that gross swishing of oil and spit for 20 minutes? Just swish a small sip of hydrogen peroxide for 2 minutes then spit it out and rinse your mouth. This is even better for oxygenation of the gums and promotes healing of minor abraisions of the mouth and will not burn your mouth. (if you have a beard don't let it get on your beard especially if it's tinted or it may turn white. If you do rinse the beard immediately).