Eucalyptus Uses: Pulpwood
Eucalyptus is the most common short fiber source for pulpwood to make pulp. Eucalyptus globulus and Eucalyptus grandis are the favored varieties in papermaking. The fiber length of Eucalyptus is relatively short and uniform, with low coarseness compared with other hardwoods. Eucalyptus fibers are slender, yet relatively thick walled. This gives the uniform paper formation and high opacity required for all types of fine papers. Eucalyptus is suitable for many tissue papers as the short and slender fibers gives a high number of fibers per gram and low coarseness contributes to softness.

Eucalyptus oil uses:
Eucalyptus oil is readily steam distilled from the leaves and can be used for cleaning, deodorizing, and in very small quantities in food supplements, especially sweets, cough drops, toothpaste and decongestants. It also has insect repellent properties (Jahn 1991 a, b; 1992), and is an active ingredient in some commercial mosquito repellents (Fradin & Day 2002) [4].

Quite a number of alternative therapies espouse various inhalation or aromathrapy Eucalyptus oil benefits, including relief from sinus congestion, sinus infections, common cold, bronchitis, flu, and other respiratory diseases. In certain instances, whether eucalyptus oil benefits health is a matter of  great anecdotal, but little empirical evidence, e.g. claims of effective asthma treatments. And here's some great anecdotal evidence to go along with that assertion: I suffered terribly from asthma as a child and young adult, and I can tell you in no uncertain terms, eucalyptus was no help whatsoever.

Other health benefits extolled by the industry include: eases sore throat, antibacterial, antifungal, antiviral - Wait! antiviral? I highly doubt that - even real antibiotics are not effective against viruses - its use as a massage oil in therapy is well-documented, however; analgesic, anti-inflammatory, "removes exhaustion", and "effective in treating stress and mental disorders." Oh my. It's a fucking miracle drug! I take all such claims with a large grain of salt.