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.
Respiratory problems: The benefits of rosemary essential oil in treating respiratory problems are well-researched and supported. The scent of the oil has been shown to give relief from throat congestion, and it is also used in the treatment of respiratory allergies, colds, sore throats and the flu.