Answer
It is licensed to relieve blocked-nose symptoms. Menthol can make airflow feel clearer through its cooling sensory effect, but studies have not consistently shown that it physically widens the nasal airway.
Sources for this answer
- Menthol and Eucalyptus Inhalation BP 1980 — Current selected SmPCemc · Summary of Product Characteristics
- PubMedPubMed · Reputable Web
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.