Have something on my toung like a kanker it's on the tip and hurts a little what can i do to get rid of it?

Mostly time: Giving it time to heal and avoiding any trauma to the area (rubbing it, burning it, etc) are the best ways. Sometimes topical steroid medications can help. If it doesn't improve, you should see a doctor about it.

Lot of options: Canker sore appears on lips, cheeks or tongue. It can bevery painful. Minor ulcers will heal completely wiyhin 7-10 days and major ulcers take about 3 weeks. Avoid spicy food, alcohol, hot food, using a straw..Anything that can irritate the ulcer any more. Use orajel topically over the ulcers if they are very painful. Your dentist can prescribe some topical creams or mouth washes with steroids.