Sorry Bestsy, I must have replied to the wrong person. In answer to your question about asthma, I don't know what tree limb she used but slippery elm bark tablets are taken for asthma. In my Natural Healing book it suggests echinacea, horsetail, juniper berries, licorice root, MaHuang, pau d'arco, bee propolis, and slippery elm bark. The pau d'arco tea acts as a natural antibiotic. Lobelia herbal extract is helpful during an asthma attack- it is a bronchial smooth muscle relaxant. Mary