wash your skin or the effected area and if its pollen (most common) keep air circulating by having door and windows open...also plenty of fluids x
I heard a liver cleanse and fasting helps.
you can start injections :/ thats what i do
Someone told me honey helps. I don't know if this is true.
You should ask medical questions like these to professionals. Doctors.
sneeze and meditate
Avoid the allergen.