Sore on Tongue

I have always gotten canker sores very easily from stress/acidic food/cuts turning into sores. My dad has always been the same way.
I bit my tongue pretty hard several days ago and it turned into huge canker sores (one on each side). It is so painful I cant talk correctly because it hurts when my teeth touch them and of course it is hindering my eating. I am using over the counter numbing medicine by KANKA. It helps temporarily and then I am in pain all over again.
I am losing my mind here and I cant stand it anymore. I have 3 questions:
How can I get rid of the sores?
How can I make them less painful while waiting for them to heal?
How can they be prevented?
Please help me. I dont want to deal with this anymore.
Thanks,
Alisha

[Jerome Tsang, DDS]

Sorry.  Avoiding those things which causes you sores are probably the best way to avoid them but there's no medical solution for it.  

As for management, you can definitely do what you are doing with the over the counter medication.  If its pretty severe, you can go to your dentist or medical doctor and get a prescription for some topic anesthetic/steroid which can help with the pain and speed up the healing a bit.