What Should I Do if I Suffer Awkwardly From Hay Fever?

If we kind of have this cultural philosophical revolution in terms of food then the rest of the industries will follow along so it doesn't matter too much. You don't want them to think like it's too hard to do because if I say to them no you can't have your hay fever tablets then they're probably not gonna want to go vegan. What about a situation like that where it's not like an accidental thing they have to actively go and buy that product but if I tell them they can't then it's gonna be much harder to make them go vegan what should I what counsel should I give my friend in that situation?