Phenylephrine hydrochloride is a decongestant that works by narrowing the blood vessels in the nasal passages, helping to reduce inflammation and swelling. Napazoline hydrochloride is also a decongestant that works by constricting the blood vessels. Menthol is an organic compound that is used to relieve nasal and chest congestion. Camphor is an aromatic compound often used to reduce inflammation, pain, and itching.