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.
Peppermint oil is found in the leaves, stems and flowers of the peppermint plant. Peppermint oil, the pure distillate or extract of the peppermint plant, is used to reduce respiratory congestion. Peppermint oil and its main active ingredient menthol are present in lozenges, salves, inhalants and sprays for the throat, sinuses, nose and lungs.