Antihistamines: Antihistamines are often the first medicines used to treat nasal allergies. They are available as pills, liquids, and in eye drops. You can buy many antihistamines over the counter, and others your doctor can prescribe.
Decongestants: Over-the-counter decongestants -- either pills, drops, or sprays -- help unblock nasal passages so you can breathe better. Don't use nasal sprays for more than three days, or they can make congestion worse.
Cromolyn (Nasalcrom): This nasal spray can prevent allergy symptoms like runny nose, sneezing, itching, and stuffiness.
Steroid nasal sprays: If symptoms last and are more severe, prescription nasal sprays are one of the best treatments for allergy symptoms if used regularly.
Saline nose sprays: These can clean out allergens caught in your nose.
Eye drops: Eye drops can relieve itching and watering.
Will Allergy Shots Help?
Allergy shots or immunotherapy gradually help your body get used to your allergy triggers. They are usually recommended for people who have symptoms more than three months each year. They can help lower your need for medication to control your symptoms.
http://www.webmd.com/allergies/living-with-allergies-11/rhinitis?page=2*