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.
Gum tree is a term used for the eucalyptus trees. There are three genera found in the myrtle (Myrtaceae) family that may be considered gum trees: Eucalyptus, Angophora and Corymbia.rees with this structure are called a mallee. Oil from the gum tree leaves is used in a variety of medications. Honey is made by bees that visit the trees, and the wood from many of the species are used as lumber. Some people like to chew on hardened chunks of gummy sap.