Which procedure is the best to cure internal hemorrhoids ?

Depend: Depends on your symptoms and the anatomy of your hemorrhoids. In general the standard treatment include dietary modification, infra red coagulation (for small bleeding internal hemorrhoids), rubber band ligation(for larger bleeding or prolapsing internal hemorrhoids) , surgery for multiple large internal internal and external hemorrhoids...Etc, etc...See a colorectal surgeon to discuss the best rx.

Really depends: Really depends on the hemorrhoids, what grade they are and how many quadrants. There are different ways to treat them and consideration for all these factors needs to be be considered before deciding on the "best" treatment.