I read from an chinese health forum that one can cure the asthma with one's own 1st morning urine soaked egg. The detail as follow:
Soak raw organic eggs in one's first moring urine for at least 3 days. You can change the urine every morning if you want.
Cook the egg with water then peel off the shell
eat one egg a day for 3 months.
It cured the author's 12 years old asthma aftering eating for 3 months. Now has been more than 20 years without any onset. She learned this from an lady who did this at the age of 40, and now is more than 70 and still alive without any onset since then. The author claimed it worked for all the people she knows, young or old. Some people at the forum followed the method and saw improvement in several weeks.
As matter of fact, this method had been documented in one of the Chinese herb book in the Ming Dynasty which has been more than 200 years. It works for bronchitis also. It was mentioned in the discussion.
The original is below for those who can read chinese: