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.
3 drops each cypress, lemon, tea tree. Shake well to disperse the oils before each use. For a gargle, half a teaspoon of salt may be dissolved into the solution. For lung congestion a salve or a massage oil containing essential oils can be rubbed over the chest, back and throat. The oils will be absorbed through the skin and lungs as the vapor is inhaled.