Otrivin Saline comprises of purified salt solution. It is used to treat nasal congestion (blocked nose). It moisturizes and loosens the mucus inside of the nose and provides rapid relief from nasal congestion. Otrivin Saline works by moisturizing the inner surface of the nose. It helps in providing relief from stuffy nose due to common cold or allergies. This medicine is for external use only. You should use it in a dose and duration as advised by your doctor. Before using this medicine, check the label. You have to tilt your head as far back as possible. Hold the dropper close to the nose. Make sure that you do not touch the nozzle. Squeeze the dropper gently so that the medicine gets placed in the nose. After few minutes, you can bend your head forward. It is generally safe with little or no side effects. However, it might cause nasal irritation at the time of application. Before using this medicine, inform your doctor if you are on any medication or are allergic to this medication. Also, inform your doctor if you are pregnant or breastfeeding. Please consult your doctor, if you miss any dose.