A few weeks ago I saw a leaflet in the doctor's surgery about a 'nose filter' which trapped pollen, pet hairs, dust, etc.
They're plastic and fit just inside your nostrils. They look a bit odd, but you have to look closely to see them.
I wear them at night and when I'm at home. They take a bit of getting used to - like contact lenses.
I've used Beconase when my allergy has got bad, but these filters have really helped - my nose and sinus are much clearer.
They have been tested by the University of Plymouth.
I'm not sure if I can post the name - is it advertising? - but if you're interested you could do a search on the internet.
Has anyone else used them for longer then the few weeks that I have? Have you found them useful long term?