Cajeput Essential Oil

Common Names: broad-leaved paperbark, paper bark tea tree, punk tree or niaouli, Melaleuca quinquenervia

Melaleuca quinquenervia has been used to treat colds, headaches, and general sickness. The steam distilled leaf oil of the cineole chemotype is also used externally for coughs, colds, neuralgia, and rheumatism.

https://en.wikipedia.org/wiki/Melaleuca_quinquenervia