The ingredients include : Camphor , Menthol , Eucalyptus oil , Pine wood oil . Description : Usually in winter when climate becomes cold and dry, our mucous membranes secretes extra mucous resulting in the blockage of nasal passage and difficulty in breathing . Serne Inhaler is a pure herbal preparation designed to provide quick relief from the effects of nasal congestion and heaviness in the head causing headaches . Serne Inhaler contains effective volatile oil which gives fast and soothing results on inhalation via deep penetration in the nasal passage up to the sinus levels, giving you a feeling of freshness and clearance from all blockades . SERNE inhaler is the Pakistan’s 1st inhaler in Blister pack which protects you from the hazards of contaminations with allergens and germs . How to use: 1-2 deep inhalations in each nostril.