Eucalyptus Oil is great to relief for those with cold, cough, runny nose, sore throat, asthma, nasal congestion, bronchitis and sinusitis. Massage directly onto chest with or without a carrier oil for instant relief and better breathing. It is also known for relaxing blood vessels and promoting good blood circulation. Parents can diffuse this oil in their childrens rooms to encourage concentration and brain power. A few drops in water and it can also be used as a chemical free mouthwash!