Olbas Oil has long beOlbas Oil for Colds & Flu, Aches & Painsen a household name that families reach for when suffering from seasonal distress and related discomforts. As an aromatic inhalant, this completely natural essential oil formula delivers invigorating and soothing sensations to the nasal and bronchial areas. Olbas Oil can be dropped onto a handkerchief or into warm water for inhalation during the day. At night, a drop on a tissue tucked inside a pillowcase can help stimulate and enhance your breathing passages so that you get a good night's sleep.