Scientific laws are considered established and universally applicable (to certain class of things or phenomenon under appropriate conditions) but not necessarily definitive. Also called laws of science.
3. Eucalyptus Oil â there are a few different types. In the absence of R.C. oil, grab any kind of eucalyptus that you have and diffuse for congestion relief. 4. Thieves Oil â I donât even know where to start with Thieves oil because it helps with just about everything.
Lemon essential oil may be good for colds and congestion Photo Credit lemon image by Aleksei Volkhonsky from Fotolia.com. There are many essential oils that many claim are useful in treating the symptoms of colds and congestion.Use essential oils in a blend, with other essential oils and a carrier oil, in the bath or through inhalation.ine Essential Oil. Pine essential oil is good for relieving congestion and helping to clear the nasal passages. Pine oil is bactericidal, antiseptic and expectorant in its actions. Use pine oil to relieve sore throats and clear catarrh.