What to do if i have had a canker sore on my tongue and i was wondering the best way to treat it?

Difficult: Treating of lesions on tongue is difficult because it is hard to get medications to stay on tongue with its actions and functions. If it is a canker sore, you can apply an ointment or tincture like zilactin or kancaid that will cauterize the lesion reducing pain and start it to heal. It should resolve in a few days if not see dentist.

Laser: I have very good success treating canker sores with my lasers. Usually a single treatment renders them painless. They also tend mot to come back as much after treatment.