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.
The most commonly used Eucalyptus oil is the Eucalyptus globulus, or âblue gumâ. But there are around 300 different types of the Eucalyptus tree, and essential oil is extracted from several of them. Eucalyptus radiata is similar to Eucalyptus blue gum but is a little gentler on the skin.Lemon Eucalyptus (Eucalyptus citriodora) has a lovely lemony smell, a little like that of Citronella.ut there are around 300 different types of the Eucalyptus tree, and essential oil is extracted from several of them. Eucalyptus radiata is similar to Eucalyptus blue gum but is a little gentler on the skin. Lemon Eucalyptus (Eucalyptus citriodora) has a lovely lemony smell, a little like that of Citronella.