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.
Petitgrain Essential Oil Uses and Benefits / Blends & Suggestions Petitgrain essential oil blends well with most oils. Blend with bergamot, cassia, cinnamon, citronella, geranium, lemon, lemongrass, lime, neroli, sage, spikenard, tangerine. A few drops in a diffuser will provide a relaxing, fresh aroma climate.