Helo sir i was a gutkha chewer in past and i was sort out by osmf in past 2 years. I was treated by multivitamin nd lycopen. My mouth opening is 4.5 CM and it's incresing day by day. But ther is a hard white colur elevated ulcer type and some hard whit skin is there which I pointed out in the pic attached. It is on the junction of both jaw. Taking multivitamin becosule and lycopen zinc but it feels that hardness is not decresing . It's paining while I opening my mouth for exercise What it should be is it white lesion on that area how it will desolve sir pls suggest