Hi
You may not even realize, but if you got runny nose or watery eyes, you may
very well be affected by hay fever.
In Aromatherapy, there are many recipes available to ease the symptoms of hay
fever.
You may want to try and see what works for you.
As for single essential oil, Tea Tree and Eucalyptus oil are said to be
effective for the treatment of hay fever in general.
From our experience though, Peppermint works really well to tackle the
symptoms. 
If you think you suffer from hay fever, do you want to give Peppermint a go?
from Marvo&Co staff