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.
Afflictions of the respiratory system include irritation and infection of the ears, nose and throat. Respiratory problems also may involve congestion, which can be decreased by inhaling rosemary (especially the verbenone type), hyssop (use var. decumbens only), tea tree, eucalyptus, lavender or peppermint.
What You Need To Do. 1  Add the essential oil to a bowl of hot water and let it dissolve completely. 2  Cover your head, neck, and shoulders with a towel and lean over the bowl. 3  Inhale the steam for at least five minutes for getting relief from congestion.