Avoid the allergen immediately
Move indoors and close windows
Shower and wash hair
Change clothes
Rinse eyes with saline or clean water
Use a saline nasal rinse
Take an over-the-counter antihistamine
Use an over-the-counter decongestant if appropriate
Use an antihistamine eye drop if needed
Run a HEPA air purifier
Clean bedding and vacuum with a HEPA filter
Stay hydrated
Use a cold compress for itchy eyes or swelling
Seek urgent medical help for trouble breathing, throat swelling, or severe reaction