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 oil is known to reduce respiratory inflammation (6), and loosen mucus in the lungs. But the use of eucalyptus is not just limited to natural remediesâitâs found in many over-the-counter products for cold, cough, and congestion relief. Eucalyptus oilâs health benefits are due to its abilities to improve respiratory circulation, provide antioxidant protection, and stimulate the immune system.