It is mentioned in the Hadeeth of Abu saeed Khudri (Radiyallu Anhu) that Jibreel (Alayhis Salaam) read a certain Dua and blew on Nabi (صلى الله عليه و سلم) to remove his Nazr. The Dua is as follows:
باسم الله أرقيك، من كل شيء يؤذيك، من شر كل نفس و عين يشفيك، باسم الله أرقيك
In shu’abul imaan there is a narration of Anas رضي الله عنه that the person who sees something and he likes it, he should recite: مَا شَاءَ اللَّـهُ لَا قُوَّةَ إِلَّا بِاللَّـهِ. If he recites these words, no harm will come to that thing.
