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.
Benefits of Eucalyptus Oil. Apart from mental exhaustion, this essential oil is commonly used for stimulating mental activity and increasing blood flow to the brain. It is not uncommon for eucalyptus essential oil to be then employed in classrooms as a form of aromatherapy.he principal constituent of the oil is citronellal, and the oil is used for industrial and perfume purposes. Australian aboriginals use oil-containing eucalyptus leaf infusions as a traditional medication for body pains, fever, sinus congestions, and colds.