remember the good ol' days when people smoked everywhere? the grocery store floors were one big ashtray, they smoked in banks and offices and waiting rooms, but why shouldn't they when 4 out of 5 doctor recommended Salem brand cigs ? ((phags) that's still so funny).
I don't think there can be an allergy to smoke, it may be an irritant for COPD and noses, but an actual allergy would be stretching it a bit.