Roughness on inner cheeks and im suffering from mouth ulcer also.can any body tell what is it?

No diagnosis: Anyone who could tell you what you have without examining it would be both foolish and possibly dangerous. Even dental experts will tell you that a visual exam is sometimes not enough, but it certainly is the bare minimum. Find yourself a reputable dentist and have this examined before you participate in the dangerous practice of self-treating - it is unwise to count on someone's "guess".

See a dentist: If these symptoms have lasted for more than a few days, go see a dentist to figure out the problem.