Nasal sprays are liquid medications delivered through the nose to treat various conditions. They are commonly used for allergies, nasal congestion, and sinus infections. The spray works by delivering medication directly to the nasal passages, providing quick relief from symptoms. Some nasal sprays contain steroids to reduce inflammation, while others may include decongestants to help clear blocked nasal passages. These sprays are easy to use and can be found over-the-counter or prescribed by a doctor. Proper technique is important for effectiveness; users should tilt their heads slightly forward and aim the spray away from the nasal septum. Regular use should be monitored to avoid potential side effects.