VIP nasal spray is a decongestant that contains three vasoconstrictors: oxymetazoline, phenylephrine, and xylometazoline. These ingredients shrink blood vessels in the nasal passages to relieve congestion caused by allergies, colds, or sinus infections. VIP nasal spray is effective in reducing swelling and inflammation, improving airflow, and alleviating symptoms of rhinitis. However, it should be used with caution, as overuse can lead to rebound congestion and other side effects.