Thirty years ago I had asthma my breathing was so restricted that I could not sleep. My family would prop me up with pillows so I could get some rest. My wheezing was so loud everyone could hear me as they passed the house. The doctor said my case was terminal. My husband found this plant by chance. I took a big leaf and boiled it and drank the tea. When it was gone I added more water and boiled it again. Doing this several times a day. I used a new leaf every day. My breathing began to get better and better and eventually I was cured from asthma drinking my Yai Hong Tea!
Grandma Pen,  Thailand
Translated from Thai: Monday, August 26, 2002

I was in the hospital just skin and bones the doctors had not been able to get me any relief. My breathing was so restricted that I could not sleep or even eat properly. This lady came to my hospital room one day and brought me some tea to drink. She said, "Drink this it will make you feel better." She came every day bringing me a pot of tea each day for a couple of weeks. I was released from the hospital and continued to drink this tea for several weeks. I am now healthy and strong thanks to her tea. The asthma is completely gone!
Khun Oi, ; Sukothai, Thailand
Translated from Thai.

Several years ago I had asthma and I heard about Grandma Pen's remedy so I went to her village and she showed me the plant. I picked one of the large leaves and cut it up and ate it over several days. My asthma was completely gone and I am so thankful for this wonderful herb.
Ajan Somkit, Buddhist Monk, Eastern Thailand.
Translated from Thai