Hi Pk!,
I always quit cold turkey when it came to my drinking but that depends on the amount of alcohol and the individual. I am not sure how much you drink but it appears you are into the hard stuff so you might experience physical withdrawals if you cut it out all at once. Tapering never worked for me because I would always want more.
Might be best to be honest with your doctor and see if they can lend some advice and meds to help ween off the sauce. Good luck