Eucalyptus oil can be used for respiratory problems, for helping improve concentration, or as an insect repellant. It can also be used in blended massage oil or diluted in your bath – methods that can provide benefits against arthritis, asthma, mucous congestion, colds, headaches, sinusitis, fatigue, and muscle aches and pains.
You may also use eucalyptus oil in a cream or lotion for pain relief and for speeding up the healing of wounds and ulcers. Use it on your skin for insect bites or wounds, but be very careful when doing so. Finally, I recommend adding very diluted eucalyptus oil to a gargle as a soothing remedy for sore throat.
This oil is commonly used for stimulating mental activity and increasing blood flow to the brain.