First and foremost This is the second page, all households with children, teenagers and aging parents would benefit from having a bottle of menthol oil in their first aid cabinet. All family members at some time in their life will be affected by colds and flu, or more serious ailments such as asthma and or bronchial infection. Menthol oil can assist in the recovery of these conditions. Menthol oil can also be used for aromatherapy purposes due to its cool and refreshing scent.