Shirley Price lists it as a powerful immune system stimulant in her discussion of AIDS/HIV support, although I suspect most aromatherapists would reach for more commonly accepted oils.

Useful in treating the symptoms of Asthma, both chronic and acute Bronchitis, unproductive coughs, and laryngitis. there is nothing better for loosening deep congestion in the lungs, bronchial tract or sinuses. Its antibacterial properties make it especially effective for infections of the respiratory system.

Some authorities recommend Inula graveolens for lymphatic drainage and circulation, although I would reach for Cistus for this purpose.

Jeanne Rose also recommends Inula graveolens by inhalation for treating seriously congested infected sinus'.  (For the times that our SineEase Synergy just isn't enough!.)

WARNINGS: A close cousin of this Inula graveolens, Inula helenium, is a known strong sensitizer and skin irritant that has NO use in Aromatherapy. The much safer Inula graveolens does not bear these warnings. It appears to be both non-irritating and non-sensitizing. However, because it lacks extensive testing, I would still avoid its use with infants, children and the elderly, and during pregnancy and lactation. (For infants and children with respiratory problems, I would reach for our lovely, gentle Myrtle oil.)