Clogged sinuses, watery eyes and a runny nose generally indicate allergies, and antihistamines and home remedies can treat them. There is no cure for allergies, as of 2015, but a number of medications treat the symptoms and bring relief to many people, WebMD claims.
People suffering from symptoms such as a runny nose, watery eyes and blocked sinuses likely have allergies. Allergies can emerge in a person anytime in their lives. Several types of over-the-counter antihistamines as well as prescribed nasal sprays and medications treat allergy symptoms. Allegra, Claritin, and Benadryl provide 12- to 24-hour relief to people with allergies. A few antihistamines, such as Benadryl, may cause drowsiness, WebMD says.
Decongestants can also relieve blocked sinuses, which may cause breathing problems through the nose. Sudafed tablets and nasal sprays, such as Afrin, can clear up the nose. Corticosteroids reduce inflammation caused by allergies. A number of home remedies can clear up allergies as well, suggests WebMD. Using a humidifier to add moisture in the air can help clear the sinuses, and using a nasal rinse to flush them out gets rid of the blockage. People with allergies often experience them when faced with an allergen or during seasonal changes.