If you are talking about some medicines, then I am not strong here. I can only suggest a fairly common method of lighting a hookah so that you have to smoke less. I often saw in hookahs that the hookah man himself at the first stages does not light it up, but simply connects the hose to the blower and it inflates both tobacco and coals in a minute or two
If you are really worried about your health, then the only thing that can be recommended is to change your job. Smoking is harmful. Even passive. This is fraught with dangerous diseases.
Therefore, either change jobs and stop smoking, or relax and not think about possible troubles - rely on the Russian "maybe".
If you continue to work and at the same time to worry about your health, you can earn depression. And thus only worsen the present state of affairs.