Eucalyptus is also known to be beneficial for the respiratory system and to alleviate breathing problems, clogged airways and headaches.The aromatic compounds give eucalyptus a minty, camphor's scent that is sharp and highly pungent. Like mint, inhaling eucalyptus opens your sinuses and clears your head. However, the aroma also contains some hints of the forest, which some people describe as sweet and similar to honey.