Hello dear, I wish to you to be in peace and living their best moments of life.
You have given very good answers to all your questions. Every country has its own tradition or ancient method of treatment. In your country, the patient's disease is cured by reciting the ayat because the ayat contains God's blessings, that's why it works.
I enjoyed reading your post. Wish you good may you always achieve whatever you aim for yourself in life and make the best journey .Greetings from me Have a beautiful.