Hello and welcome to HCM,
I can understand your problem and your worry.
First of all let me mention that if you are more than happy to stop smoking
then you should do it as soon as possible regardless of whether it is responsible for your present problems or not.
Coming to your tonsil
scarring; you must understand that scarring is due to recurrent infection and not due to smoking. Although smokers may occasionally have a white patch
deposition around the throat and tonsils which is distinct from scarring.
If you have recurrent infections of the tonsil then you may be advised to remove them. Consult your ENT doctor for the same.
Stop smoking if possible
get well soon
Dr Sriram Nathan