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.
Essential Oils For Concentration*. 1  Rosemary Essential Oil â Helpful when added to an atomizing diffuser. 2  Lavender Essential Oil â An energy balancer. 3  Eucalyptus globulus Essential Oil â Extracted from twigs and leaves of the evergreen Eucalyptus trees.  Peppermint Essential Oil â Made from the perennial herb.