Hello....My Name Is KD...I Can't Open My Mouth Properly Due

Hello....My Name Is KD...I Can't Open My Mouth Properly Due To Chewing Tobacco Mava...I Can Only Open It 21mm...And My Chicks Are Got Quiet Thinner From The Lower Jaw...Suggest Me Something What Should I Do??I Have Even Consulted Doctor And He Prescribed To Take Kenakort,SM Fibro And FDSon...Moreover, I Have Left Chewing Tobacco 6 months Ago...