No, I am not diagnosing anyone.
It just flat out amazes me, as a scientist, that with the tremendous number of potential allergens that massive numbers of people come into contact with on a day-to-day basis, only one is acknowledged by the medical community on a widespread basis as the cause of everyone's ills.
I am not saying that in some cases the diagnosis is not correct. But in all?
Did you get new carpet? A new car? Paint recently? Have the house fumigated? Is there mold present? Use a Dry Cleaning service? Do recent landscaping? Have new shrubs planted? New furniture? Old furniture? Have a wood shop?--(some wood dusts are real nasty). Refinish hardwood floors? Install a laminate? Get a new house? Do you have one of those air freshener doohickeys plugged in somewhere? etc., etc., etc.
If whoever made the diagnosis did not ask these questions and more, they were not very thorough.
It has been my experience that cigarette smoke is assumed to be the whole problem.
Break down ass/u/me and you see where those assumptions generally lead.
Your mileage may vary.
It's like the RATS always saying it's Bush's fault. Well, if it isn't his fault, it must be the fault of some smoker somewhere. LOL
In this case, though, the person says he/she had allergy testing done and cigarette smoke was positive. It also sounds like the person has since had years of experience and when he/she has a hard time the one constant is the presence of cigarette smoke.
I realize about the potential allergens. In fact, cigarette smoke isn't just one potential allergen. If I remember correctly there are many, many, many chemical compounds in a commercial cigarette.