At our practice we would definitely suggest you quit smoking before beginning any treatment plan. That being said we would customize a treatment plan for you that fits in to your lifestyle and fulfills your goals.
Once that is accomplished, we have so many great options non-surgically for the reduction in lines around the mouth due to smoking and otherwise. The peri-oral area is a common area of concern for patients and can be treated specifically with CO2RE laser (fractionated CO2), Sublative Fractional RF (fraxel and radio frequency), chemical peels such as the VI Peel and microneedling.
I would recommend a personalized consultation for the best treatment plan for your skin.
Hope this helps. Good luck.