tobacco mosaic virus drawing File:TMV Structure.png File:TMV structure simple.png - Wikimedia

If they are unable to decrease the amount of cigarettes they are smoking daily by 50% (non-responders), then you would add an additional medication, such as nicotine gum

You may want to start stocking up on cartons of Marlboros and logs of Copenhagen like youre about to go on deployment, because a new bill would make it harder to buy dip or a pack of smokes at your local exchange if you arent 21

Its a total release of control and you put your fate in someone elses hand

If it's coming from inside the house, then you'll want to look at other possible causes like dust buildup in vents or filters being clogged up with pet hair/dander build-up