124. What to say when you feel a pain in your body

Dua 256

بِسْمِ اللهِ (ثَلاثاً) أَعُوذُ بِاللَّهِ وَقُدْرَتِهِ مِنْ شَرِّ مَا أَجِدُ وَأُحَاذِرُ

Bismillaah.
'A'oothu billaahi wa qudratihi min sharri maa 'ajidu wa 'uhaathiru.

Put your hand on the place where you feel pain and say: With the Name of Allah (three times).
Then say : I seek refuge in Allah and in His Power from the evil of what I find and of what I guard against.

Reference: Muslim 4/1728.