1. Improves Respiratory Conditions
Of all essential oils, eucalyptus is believed to be one of the most effective against a variety of respiratory conditions, such as chronic obstructive pulmonary disease (COPD), asthma, bronchitis, sinusitis, the common cold, cough or the flu.
Eucalyptus essential oil improves many respiratory conditions because it helps stimulate your immune system, provides antioxidant protection and improves respiratory circulation. The eucalyptus makes it easier to breathe when you feel muffled and with your nose working because it activates the cold receptors of the nose and even works as a natural threat remedy. In addition, eucalyptus can help you sleep when you feel congested and unable to breathe.
The research shows that Eucalyptus globulus, whose cineole is the main active ingredient, helps to reduce the inflammatory effect of chronic bronchitis and inhibits the hypersecretion of mucins of the respiratory tract in animal studies.
A randomized study published in Evidence-Based Complementary and Alternative Medicine evaluated the treatment of upper respiratory tract infections using aromatic herbs. The trial was conducted in six primary care clinics in northern Israel and the participants were treated with a blend of essential oils that included essential oils of eucalyptus, mint, oregano and rosemary. Those in the experimental group applied the mixture of essential oils as an aerosol five times a day for three days and compared these results with a placebo aerosol.
The researchers found that 20 minutes after using the spray, those in the essential oil group reported a greater improvement in the severity of symptoms compared to those in the placebo group. The symptoms measured were sore throat, hoarseness and cough.
2. Relieves Cough
Eucalyptus oil is one of the most effective essential oils for cough because it works as an expectorant, cleansing your body of the microorganisms and toxins that make you cough and feel bad. Eucalyptus oil also makes it easier to breathe when you feel muffled and your nose is working.
A double-blind, placebo-controlled trial conducted in 2014 investigated the efficacy of cineol, one of the main components of eucalyptus oil, in patients with acute bronchitis. Patients given 200 milligrams of cineole three times a day for a period of 10 days experienced significant improvements in bronchitis symptoms compared to those who received placebo. Patients who received cineol had significantly fewer cough attacks after four days of treatment.
3. Improves Seasonal Allergies
Components of eucalyptus oil, such as eucalyptol and citronellal, have anti-inflammatory and immunomodulatory effects, which is why the oil is often used to relieve seasonal allergy symptoms.
An animal study published in BMC Immunology found that eucalyptus oil not only exhibits antiseptic, antimicrobial and anti-inflammatory properties, but it may also have immuno-regulatory effects. This can help to alter the immune response that occurs when the body comes into contact with an allergen.
4. Fights Infections
Several studies show that eucalyptus oil and its main component, eucalyptol, have antimicrobial effects against many strains of bacteria, viruses and fungi.
Eucalyptus can be used aromatically or topically to fight the microorganisms that make you sick. This is why eucalyptus oil benefits include its ability to boost your immune system. A lab study published in the Asian Pacific Journal of Tropical Biomedicine found that eucalyptus oil displayed inhibitory effects against Escherichia coli and Staphylococcus aureus (which can cause a staph infection).
And another lab study showed that eucalyptus oil has a direct antiviral effect against herpes simplex virus, which can lead to infections including genital herpes.
Eucalyptus essential oil can also be used as an anti-fungal agent against common fungal infections like candida and toenail fungus.
5. Reduces Pain and Inflammation
A well researched eucalyptus oil benefit is its ability to relieve pain and reduce inflammation. When it’s used topically on the skin, eucalyptus can help to reduce muscle pain, soreness and swelling.
A randomized clinical trial published in Evidence-Based Complementary and Alternative Medicine investigated the effects of inhaling eucalyptus oil on pain and inflammatory responses after total knee replacement surgery. Patients inhaled either eucalyptus or almond oil for 30 minutes during rehabilitation on three consecutive days. Then pain, blood pressure and heart rate scores were reported. Researchers found that pain scores on all three days, and systolic and diastolic blood pressure levels on the second day were significantly lower in the eucalyptus group. This suggests that eucalyptus oil inhalation can be used as “a nursing intervention for pain relief.”
6. Alleviates Headaches
Eucalyptus oil is one of the best essential oils for headaches because it may alleviate sinus pressure that can cause a lot of pain and tension. It also has invigorating properties that can boost mental clarity and promote relaxation of tense facial muscles, which is helpful when you are suffering from a headache caused by stress or exhaustion. These results seem to be most pronounced when eucalyptus oil is combined with peppermint oil and a carrier.
A 2011 randomized study found that eucalyptus oil has anti-inflammatory and analgesic effects. It can help to inhibit the formation of mucus in the airways and improve breathing for people with respiratory conditions, which can help to reduce headache tension that’s caused by sinus pressure.
7. Improves Earaches
Because eucalyptus oil works as an expectorant that helps to unclog your respiratory tract and has antimicrobial properties that help to clear up an infection that may cause fluid to build up in your ear canal, it can be used to improve ear infection symptoms and earaches.
Use eucalyptus oil to improve earaches or pain that’s caused by the common cold or cough, nasal congestion, a bacterial infection, seasonal allergies, or any other type of condition that’s causing the buildup of fluids in your ear canals.