let me add acouple of words on this:
Several members of my family have/had Asthma. Including my late mother who had it very severe. However, when she travelled abroad to a hot climate the condition completely disappeared and she could emliminate her inhalers. I suspected the dry air and change to natural unprocessed foods.
I have two nephews, twins, who developed asthma as toddlers. This simply got worse as they grew older so much so that they had to be hospitalised and one of them was on steroids with all it's side effects such as bloating and potential risks to eyesight etc. School attendancy went down to around 50% over several years. My sister who believes passionately in alternative healthcare tried just about everything she coud lay her hands on: herbs, homeopathy, tinctures, magnetotherapy, detox therapies etc, etc. Nothing worked until she stumbled across Buteyko: there was an instant improvement from day 1. ALL inhalers got thrown away within a month. School attendance returned back to normal. Now they are 16 and haven't had a serious attack for years. All thanks to Buteyko: a simple breathing technique.
I know this is off topic but i had to add this to encourage you try it as i know how debiliating Asthma can be. It is a form of Asphyxiation, very cruel and painful illness.
Love and kindness
Hakim