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.
Eucalyptus is the name for a group of plants that includes over 600 species of trees and shrubs in the plant family Myrtaceae, or the Myrtle Family. Today, Eucalyptus is native to Australia and some surrounding islands, including islands in the countries of Papua New Guinea and Indonesia.he fruit is a woody capsule, a type of dry fruit that opens when mature to release the seeds. The capsule opens by valves. Characteristics of the bark, leaves, flower buds, flowers, and capsules are important for identifying species of Eucalyptus. Eucalyptus globulus.