For many years, eucalyptus oil has been used to relieve coughing. Today, some over-the-counter cough medications have eucalyptus oil as one of their active ingredients.
The anti-inflammatory properties of eucalyptus can ease symptoms of herpes. Applying eucalyptus oil to a cold sore may reduce pain and speed up the healing process.
Research suggests that eucalyptus oil eases joint pain. In fact, many popular over-the-counter creams and ointments used to soothe pain from conditions like osteoarthritis and rheumatoid arthritis contain this essential oil.
Furthermore, inhaling eucalyptus oil for 30 minutes has been associated with lower blood pressure in patients after knee surgery, which suggests that it has a calming effect