It is not cancer for sure because as you said you started smoking only since 3 yrs, you first observe the change (by quiting smoking permanently) after six months, there has to be mild recovery if it is, no need to do special remedy to remove pigmentation , if not so, visit periodontist he/she will guide you well for make your gums healthy like laser therapy(nonsurgical), removing black layer by blade(surgical) etc.
Answered2016-10-04 06:32:32
1/1 people found this helpful