I for one used to suffer a great deal with allergy related symptoms such us:
pollen, cat/dog hair, perfumes/ alcohol/tobacco smells.  I recall ten years
ago when I was still working one of the office workers sprayed the office
with Lysol spray (after a client dealing with a client with a very strong
garlic b/o).  Within second of the Lysol spray been used I started to slowly
loose my voice ending up loosing consciousness only to wake up in the ER.

Lately, after having stayed on the paleo diet for a number of months I can
in all honesty say that I am allergy free also some of the food allergy that
used to bother me a great deal no longer do so unless I really pig out.

Hope this helps.  Clelia