There are many botanicals that can help us control asthma symptoms.
Medicinal mushrooms are well known for their ability to balance immunity and modulate inflammation. One variety, Cordyceps sinensis, has been shown to reduce airway inflammation in animals.
Another issue can be vitamin deficiency, particularly vitamin D. One study found that reduced vitamin D levels were closely linked to reduced lung function.
Ginger can be useful. One study found that it can open up airways by relaxing smooth muscle.
The Asthma Diet
The Mediterranean diet (which emphasizes fruit, veggies, olive oil, lean protein, legumes, and whole grains) is known for its anti-inflammatory effects. People who adopt it often lower their risks for heart disease and cancer. This approach also seems to work for asthma. A study conducted in New Zealand found that asthma patients who switched to a Mediterranean diet did better than those who stayed with their existing food plan.
"Effects of Ginger and Its Constituents on Airway Smooth Muscle Relaxation . . ." by E.A. Townsend et al., Am J Respir Cell Mol Biol, 2/13
"The Extract of Cordyceps sinensis Inhibited Airway Inflammation . . ." by Y.L. Chiou and C.Y. Linn, Inflammation, 6/12
"Vitamin D Status and Longitudinal Lung Function Decline in the Lung Health Study" by K.M. Kunisaki et al., Eur Respir J, 2011