Welcome to HCM.
Any growth in the throat needs immediate attention. Even if it is not causing any problem, you have to consult an E.N.T. surgeon, who will have to examine the growth and if need be take a biopsy
from that which has to be examined under a microscope to find out what it is, and according to the biopsy findings you will be advised by the surgeon.Smoking
of course has it's own set of problems, some of which are quite serious.
Wish you all the best.