Yuck Fou.
As we all have been shown, allergic reactions to tobacco are FAR less common than allergies to various other organic substances like mold spores, pollen, dust mites, animal dander, perfumes, detergents, cedar & pine smoke, various grasses, etc.
The "Type of reaction" recorded above is, of course, most often "Psychosomatic." Antihistamines SELDOM help these people; they respond best to Tranquilizers & Antidepressants & Psychotherapy. They NEED our sympathy----BUT, they are FAR TOO CRAZY to be directing "Public Policy" about ANYTHING!!
Doc