I have had an acute allergy to all 3 types of nuts all my life. Yet, I have ordered some Black-Walnut hull tincture and will let you know how I fare with it. Having lived with this allergy all my life, I'm very attuned to what the reactions are and mine may not be as severe as yours were. Yet you say you've outgrown them, which I have not. You're lucky!
I'm not as scared of putting 1 drop of the tincture in a half cup of water and trying it as I am of letting the parasites live on.