I'm finding the same this year OP. I feel miserable, so feel for you and your DH. I was talking to the pharmacist at my local chemist and he recommended pirinose spray. It takes a few days to work but is supposed to be very good. I asked him about it after a couple of mums I know mentioned that it was helping more than just pills.
I've been taking cetirizine and Loratidine, one morning and one at night, but they've been okay but not brilliant.
I,m starting the spray this evening so will let you know how I find it, if you're interested.
I,m wondering if I've actually started to develop some sort of resistance to the tablets as I've taken them for years for hayfever and have definitely noticed they become less effective with each passing year.
I,ve also tried hay ax, which is a blam that you put around your nostrils to catch pollen, but that worked for a bit but again not that well.
I've also hot one of those nose probes with red lights, medinose I think, and that was helpful, except we moved last year and I can't find mine anywhere. You could get a much cheaper version from Lloyds pharmacy if you're interested in looking into that. I found it especially helpful for clearing my very blocked but runny nose, ESP at night when this would be worse. One session of that and I could actually blow my nose, which meant relief which meant I could get to sleep.
Hope this helps and I hope you find something that works soon. Xxx