If you suffer from hay fever and you want to go out, then smear a little Vaseline into your nostrils. this hold the dust out, change the Vaseline at least once a day
how to treat hay fever?
Allergies such as hay fever and reactions to cold or dust, making you sneeze; by hay fever severe itchy eyes and sneezing: tried all sorts of means, horse agents helped (hydrocortisone). When own recipe: White unscented vaseline on your eyelashes very thin and lubrication in your nostrils, working with me for over five years! No pills needed!
Find in your environment a beekeeper and buy honey. Daily a couple of teaspoons should already bring resistance. Sometimes the beekeeper also has pollen grains that works even better. (Theory behind this: if you ingest a small daily dose of allergens, build resistance, basically something like vaccinate!)
My wife has for years suffered from hay fever. But she is now a few weeks working on an empty stomach, a glass of orange juice (unsweetened) with dissolved therein to drink a tablespoon of honey. And since she does now she has until now not suffer from burning eyes and does not have to sneeze more.