Dear Santosh, Science is no match for religioud belief.
We go to temples, churches and pray to a particular deity or saint, with a mind set. Human mind is very complex and if one truly believes the favour will be granted or certain ailment will be healed, it is possible it might. As an example, I firmly believe if you pray to Saint Antony, to help find a lost item, there are 99.9% chances he will help you find it. It has happened to me. Similarly devotees make a vow and if the favour is granted, they will fulfill what they promised in return. See the several Hindu devotees donate huge amounts in gratitude at the Temples. Similarly, a honest. god fearing Homeopathic practitioner, mostly does it as a social service, expecting noting in return unless he is commercial minded. I have known, for example, my grand mother treated Jaundice but did not expect any thing in return, but the cured patient some timesused to come and thank her. That's all. In the bargain, I had to go hunting for all the herbs, shrubs, and roots she wanted. So do not be skeptical but if you want to do scientific study, observe such practitioner. Do not pressurise Fr. Ivo. He has written in good faith. It is time, we learn from our elders what they have learned from their elders, because some times (ZAD/PALO) herbs and shrubs do cure certain diseases, but it takes time. At the same time, let me tell you, allopathic medicines are habit forming and seem not to work after prolonged use and in that case, the physician will prescribe higher dosage. Sinderely Maurice D'Mello Toronto