Second/third hand smoke can cause allergic reactions as well, but they're a lot less common than perfume-induced ones.

I get such severe sneezing attacks from lemon-scented cleaning products that I had to warn the hospital ward I was in to ban them when I was there for a heart stent operation.

The reason you don't see as many complaints about perfume allergy as you do about tobacco pong is that people with serious perfume allergies don't dare go near places where they might get exposed to the stuff.