Doctors do not know exactly what causes cluster headaches. They seem to be related to the body's sudden release of histamine (chemical in the body released during an allergic response) or serotonin (chemical made by nerve cells).
Eucalyptus is a tree. The dried leaves and oil are used to make medicine. Though eucalyptus is used medicinally for many purposes, there isnât enough scientific evidence so far to rate it as effective for any of them.Eucalyptus leaf is used for infections, fever, upset stomach, and to help loosen coughs.ucalyptus is a tree. The dried leaves and oil are used to make medicine. Though eucalyptus is used medicinally for many purposes, there isnât enough scientific evidence so far to rate it as effective for any of them.
Overview. The eucalyptus tree is the mainstay of Australia's forests; over 700 species of eucalyptus exist in this large continent. Eucalyptus goes by many names, such as gum, mallee, box, ash, ironbark and stringybark. This amazing tree is an important part of Australia's ecosystem. It is the main source of nourishment for the loveable Koala bear. Most importantly, it is able to survive the fires that often ravage Australia.