Nope, I'm not saying that at all, but lobelia tincture has been used for asthma. Uniquity sells a lobelia tincture that she tinctures in vinegar and alcohol to get all the properties extracted as some are soluble in vinegar and some are soluble in alcohol. She has a storefront on her Natural Healing forum: //www.curezone.org/forums/f.asp?f=970
Someone who used to post there a lot used the lobelia for her asthma. She had spent a year or more detoxing off various meds and found that when she was having an attack, the lobelia tincture (taken straight into the mouth or in a small amount of water and knocked back) relieved the symptoms. Lobelia isn't long acting so your mom may need her meds for a while longer but it may help her stretch out her need for them.
Licorice root extract is a powerful herb that feeds and supports the adrenals. I'm not talking about the candy, but the root extracted or powdered in capsules. My brother takes a 1:1 licorice extract (1 part licorice to 1 part alcohol) that he gets from our doctor (we see the same one for our thyroid/adrenal issues) for his adrenal fatigue. It really helps him. You might see if uniquity has a licorice extract too.