Is there any OTC allergy medicine that really helps with ragweed allergies? What about the OTC nose sprays?

Allergic rhinitis. Otc antihistamines usually help control your allergy symptoms. If not, prescription nasal antihistamines and steroids will also work. Otc nasal sprays are usually indicated to unclog the nose. Caution should be exercised when using neosynephrine as its chronic use will only worsen nasal congestion.