[elkfersupper]

Allergic reactions require protein.

There is no protein in tobacco smoke.

[luckystarmom]

From:

http://www.netdoctor.co.uk/diseases/facts/allergicdiseases.htm

“Allergic people have very sensitive mucous membranes, which can be irritated by lots of different substances including smoke, pollution, cooking smells, perfume and strong odours. Children who are often exposed to passive smoking are more at risk of developing allergic reactions.”