Maybe one reason why the asthma I experience is less in Malta is because of the sun. But, not today...
Apparently, Vitamin D and Magnesium help asthmatic people. I may get some Magnesium when I can afford it.
Also, one tends to eat less dairy in the heat, or at least I do, except for cheese.
Interesting findings... http://www.newsmaxhealth.com/Dr-Brownstein/asthma-milk-casein-magnesium/2014/11/05/id/605489/