Are there any effective home cures for hay fever?

Yes. There is an over the counter supplement called butterbur, which woks similarly to prescription singulair (montelukast). It has to be taken daily for about three to four weeks before seing improvement. If your symptoms generally start in march, you should start taking it second week i february. For dosing, follow the specific instructions on the supplement bottle.
Hay Fever. Avoidance, salt water washes, extensive cleaning and dusting and vacuuming.