Triludan was taken off the market in the U.K , but apparently still availabe in some Countries abroad. If so, they should start a black market for it over here. The drug barons would earn millions selling their 'gear' to us hayfever sufferers.
Triludan worked for me, but now, no matter what the products claim nothing seems to ease it. Hayfever is one of the most difficult allergies in the world to deal with, and as rightly pointed out, totally misunderstood by those lucky enough not to get it !