Sunnah Center: The Noble Sheikh Muhammad ibn Saalih Al- Uthaimeen may Allaah have mercy on him states:
This Soorah has characteristics that distinguish it from others. From those characteristics is that it is a pillar of the prayer, which, in turn, is the greatest pillar in Islam after the testification of faith. There is no prayer for the one who does not recite the opening chapter of the Qur’an. It is also a Ruqya (incantation- used as a cure when read over someone). When read over the sick they are cured by the permission of Allaah because the Prophet (SAW) said to the one who read it over a person who had been bitten by a scorpion and was cured, How did you come to know that it is aRuqya (cure)? [Agreed upon, Saheeh al-Bukhaaree  with the additional wording, You have done the right thing].