You may have Thrush and this is treated by an antifungal gel called Daktarin specially made for oral use.
Anaemia can also cause problems with the tongue.
See your doctor to get a swab taken from the tongue to see if you do have thrush. You doctor may also decided to take a blood test for anaemia, Vitamin B group and also for diabetes.
Make sure that you drink plenty of water, and yogurt drinks are good against thrush.
For the sores on the side of the tongue you can buy Bonjela.
I would suggest you see your doctor to rule out thrush, diabetes and any blood disorder.
Hope you get on OK.
hey any improvement on your tongue? I have similar problem
hey, I'm sorry I haven't been on here in a while. Yes, there is, it was because I used to smoke alot so when I cut down, it got better.