Covonia Vapour Drops Covonia Vapour Drops are a fast-acting inhalant oil that tackles that bunged-up feeling from catarrh, hayfever & nasal congestion. Covonia Vapour Drops is gentle on irritated noses. Ingredients Active ingredients: Menthol (17.5% w/v) & Peppermint Oil (0.2% v/v). Other ingredients: Eucalyptus Oil, Cajuput Oil, Spike Lavender Fragrance Oil & Industrial Methylated Spirit. Directions Adults, the elderly & children over 2 years: Sprinkle a few drops on a handkerchief & inhale the vapour, avoiding direct skin contact. Under 2 years: Not recommended.