Sadly if you're affected by this, there's not a lot you can do to stop it. Not even a bag of cement will help. For those of you not affected, consider yourselves lucky.
For the first 30 years of my life I wasn't affected, but in the last 20years, every Sept to November is a nightmare particularly as I enjoy the outdoors. The dryer the conditions, the worse it seems to be.
After many years of trying different things, the last couple of years I started using Rhinocourt Nasal spray with some success. Available from all major chemists or here -
www.pharmacydirect.com.au
Started using this beginning of August to build up the immunity in my nasal passages. But different remedies are going to work or not work for different people.
The latest natural remedy I stumbled across is Chilli Spray. I haven't tracked it down yet, but understand you can get it from selected pharmacies that may have a naturopath attached. Again hearsay only at this stage, but understand that Chilli Spray kills the senses in the nasal passages, burns like hell for the day, but worth the pain as you then are not affected by hayfever for the rest of the season. Will see if I can find more info.