More generally – the problem I have with the oil thing is they are a complex mix of chemicals. I am sure some of them have the potential to provide therapies for various conditions. Let’s do the studies and find out. Pharmaceutical companies are still looking at plants as sources of drugs (example: http:///blog/2014/06/28/is-big-pharma-ignoring-marijuana/ ). The idea that “Big Pharma” is somehow not interested or is trying to downplay the effectiveness is nonsense – because if there is potential to isolate something and make money – you better believe they will do it!
Decongestant nasal sprays are available over-the-counter in many countries. They work to very quickly open up nasal passages by constricting blood vessels in the lining of the nose. Prolonged use of these types of sprays can damage the delicate mucous membranes in the nose. This causes increased inflammation, an effect known as rhinitis medicamentosa or the rebound effect . Decongestant nasal sprays are advised for short-term use only, preferably 5 to 7 days at maximum. Some doctors advise to use them 3 days at maximum. A recent clinical trial has shown that a corticosteroid nasal spray may be useful in reversing this condition.  Topical nasal decongestants include: