Thanks for writing to us.
Apply mouth numbing gels which would manage the sore pain, something like glycerin
which has benzocaine
in it. Apply these gels directly to the sores and it will heal faster.
avoid acidic drinks and foods, they instigate the sores all the more making it reappear time and again. Secondly, though this sounds very obvious, but do not bite the tongue or the sores on the inside of the mouth frequently, not even accidentally. Try to be extra careful or else the condition would become even worse.
Apply salt, it's the basic home remedy for tongue sores. Take about a teaspoon of salt in your hand and add a drop or two of water to it. Form a paste and apply it directly to the sores. At first it may sting a lot but if you perform this three times a day, the chances of the sores getting cured are high.
Hope this information helps you.
Wishing you good health...