Synopsis

Source of validity: Scientific
Rating (out of 5): 2

Eucalyptus, particularly its essential oil (rich in the compound 1,8-cineole), has a long history of traditional use for respiratory conditions, including allergies. However, there is also some scientific evidence supporting its role in alleviating symptoms associated with respiratory allergies. Eucalyptus oil acts as a decongestant and possesses anti-inflammatory, mucolytic, and mild bronchodilatory properties. Several small clinical trials and laboratory studies suggest that inhalation of eucalyptus oil can help reduce nasal congestion and inflammation in conditions like allergic rhinitis, though the evidence is not robust and often limited to short-term or symptomatic relief.

A 2013 randomized controlled trial found that cineole, the main component in eucalyptus oil, improved nasal airflow and reduced symptoms in patients with rhinosinusitis, a condition that shares similarities with allergic rhinitis. Additionally, in vitro and animal studies have demonstrated that eucalyptus oil can inhibit histamine release and suppress inflammatory cytokines, suggesting a potential mechanism for allergy symptom relief. Despite these findings, large-scale, high-quality clinical studies specifically targeting allergic respiratory conditions are lacking, resulting in a moderate to low evidence rating. Overall, while there is some scientific support for eucalyptus in managing respiratory allergies, it should be used with caution due to potential allergic reactions or irritation in sensitive individuals.

More about eucalyptus
More about Allergies (respiratory)

Other ingredients used for Allergies (respiratory)

Other health conditions supported by eucalyptus

Products containing eucalyptus