Grass pollen allergy - any solutions?

[MitchT]

The OH seems to have a grass pollen allergy which manifests itself like hay fever that flares up really badly in the form of sneezing and nose streaming. It flared up over the weekend as all the lawns has been cut on the development where we live. She also had it very bad at a previous address where we had a ground floor bedroom overlooking the lawn. It's driving her bonkers at the moment and I wondered if anyone here had experience of this and had found a solution.

[MitchT]

Thanks - I'll pass than on to her.