2 of my kids suffer terrible hayfever. DS's is the worst and it seems to get worse as he gets older, he's 13 now and has a Telfast every morning because it's the only one that I've found works on him. I've found Aerius (spelling?) liquid the best for the younger ones. Every morning the 3 of us have our hayfever medication lol.

I hope you're able to get on top of it, Hayfever makes them so cranky when they suffer it for too long.