My sympathies if you are suffering. Glad it works. These days I seem to only get hay fever from tree pollen in March and standard antihystamines do the trick. Used to be terrible at this time of the year, but not now. Perhaps it's one small benefit of getting older. However, I've had the odd nose irritation in the last few weeks so I guess it is very bad this year with high pollen counts (I don't check any more since I don't get it so bad now).
Colin