Occasionally I have to take fexofenadine HCL for chemical sensitivities/allergies which cause my body to produce to much histamine. I've tried everything naturally and it doesnt quite work like the fexo HCL. Black seed oil seems to somewhat work as a anti-histamine, but not nearly as effective as the Fexofenadine HCl. I don't like taking that junk but every now and then i don't want to deal with histamine overload.
I cant do the drowsy anti-histamine's they make me feel like I've been tranquilized.