Hyssop essential oil, one of the 12 primary oils honored in Scripture, has been used for its physical and mental health benefits since Biblical times. Today, it remains a common component of digestive and respiratory treatments, largely due to the benefits provided by its main ingredients. Two of hyssop oil’s most important constituents are camphene and myrcene, which are discussed below.
Camphene is a powerful constituent that has long been used to help open up congested airways, while also reducing inflammation and fighting against allergic reactions, which makes it ideal for alleviating the symptoms of various respiratory conditions. This includes colds, bronchitis, and asthma. In addition, the combination of camphene and other constituents gives hyssop oil antispasmodic properties that helps sooth coughs and loosen phlegm that has formed in the respiratory tracts . As an antispasmodic, hyssop oil can also relieve painful muscle and intestinal spasms.
A recent German study found that the main ingredients of hyssop oil, including myrcene, work together to fight infections, specifically genital herpes . The study determined that plaque formation was decreased by more than 90 percent when hyssop oil interacted with the herpes virus.
Science also shows that hyssop essential oil can enhance the circulatory, digestive, excretory, and nervous systems, while simultaneously killing off parasites and bacteria. This not only helps boost the immune system and ensure better nutrient absorption, but also decreases inflammation and allows blood to flow better through the organs, which is ideal for maintaining the entire body’s functioning .
 https://books.google.com/books?id=7LCcCwAAQBAJ&pg=PT140&lpg=PT140&dq=myrcene+hyssop+oil+benefits&source=bl&ots=KmA8Od033n&sig=rfvZfdHAOMfbYfw0CbJdb_84R5g&hl=en&sa=X&ved=0ahUKEwi4zvXU9enPAhWCZCYKHaIGAHYQ6AEIWzAK#v=onepage&q=myrcene%20hyssop%20oil%20benefits&f=false  https://draxe.com/hyssop/  https://www.ncbi.nlm.nih.gov/pubmed/17976968  http://articles.mercola.com/herbal-oils/hyssop-oil.aspx