My mom(55yrs) has redness, whiteness and cuts in the root of tongue and sometimes cheeks also for so many years.. This is so painful .. I have shown it to so many doctors but nothing improve.. she is facing difficulty in eating and drinking.. she took so many medicine and use tubes also but when she use new medicine the condition will get worse.. which test should be done FNAC or CT scan to identify the problem.. plz help.. it is nt easily visible but it's so painful..