Lourdes water has effect faith healing
Lourdes water is water which flows from a spring in the Grotto of Massabielle in the Sanctuary of Our Lady of Lourdes, France. The location of the spring was described to Bernadette Soubirous by an apparition of Our Lady of Lourdes on 25 February 1858. Since that time, many millions of pilgrims to Lourdes have followed the instruction of the Blessed Virgin Mary to "drink at the spring and bathe in it". Lourdes water is considered non-liturgical holy water.
Although never formally encouraged by the Catholic  Church, Lourdes water has become a focus of devotion to the Virgin Mary at Lourdes. Since the supposed apparitions, many people have claimed to have been cured by drinking or bathing in it, and the Lourdes authorities provide it free of charge to any who ask for it.Alleged medical properties
Many believers experience Lourdes water as helping to improve their health, but there is a risk that sick people may stop effective medical procedures if they have too much confidence in the water, which may at times be healing simply by virtue of the placebo effect. Saint Bernadette herself said that people were healed by their faith and prayers.
impacts influences affects results in alters