I have sores on my tongue. what do i do?

Your question ?: What are they ? Hard to tell without knowing how long you have them, your medical history, and your habits regarding smoking. If they are there more than two weeks, see your physician.

Irritation?: If it is only an irritation or inflammation it will go away after the cause is removed. If there is no irritation then it could be an infection, and finally and most unlikely is a tumor. See an oral surgeon.

Must see them: The list of possibilities is quite large. If you want to know what they are, you need to see a dentist who can tell you. Any lesions in the mouth that last more than two weeks should be examined anyway.

Hard to tell: It needs to be examined by a dentist or oral medicine specialist.