Treatment of lungs cancer for people who smooking

Smooking is not good for human health but now a day many people smooking more then 5 in one days it will dangerous from then health and also for them lungs & from smooking people get lungs cancer & after few month & year it makes many problem for them so one of the good way for treatment of smooking is 1st people have to stop smooking who have lungs cancer . and they need to go hospital for them treatment .