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.
Medicinal Part: leaves. Description: Eucalyptus is a tall, evergreen tree native to Australia and Tasmania. Among its various species, the blue gum is the one commonly grown in the U.S. , being found in California, Florida, and parts of the South.The trunk, which grows to 300 feet high or more, is covered with peeling papery bark.escription: Eucalyptus is a tall, evergreen tree native to Australia and Tasmania. Among its various species, the blue gum is the one commonly grown in the U.S. , being found in California, Florida, and parts of the South. The trunk, which grows to 300 feet high or more, is covered with peeling papery bark.