i under went a tooth extraction 9 days back.the tooth was taken of by driling the bone thats what the doctor said and he put stiches to the gum. for this he gave me brufen 200mg, amoxicilin 500mg and flagyl 400mg, but still im havig sever pain in my lower left jaw where my wisdom tooth was extracted. when i met my doctor to remove the stiches i complained about my situataion, he said its normal as for the bone beeing drilled. now when i cheked my mouth inside the cheek a light ash or some what purple coloured area is visible where the cutting has taken placed, why is this and why am i having the pain still and would this discoulring of my inner cheek resualt in any other illnes, will it turn in to cancer as i smoked almost 12 cigarets within this 9 days. please help me coz im confused.and sorry for the long question.