Al-Kaf’ami, in his book entitled al-Misbah, has mentioned that whoever is diseased, may rub over the place of his prostration (in prayers) with his hand and then rub the ailed organ after each obligatory prayer seven times. He may then say the following supplicatory prayer:
يَا مَنْ كَبَسَ الْاَرْضَ عَلَى الْمَاۤءِ
O He Who has pressed the earth on water,
وَ سَدَّ الْهَوَاۤءَ بِالسَّمَاۤءِ
blocked the air with the sky,
وَاخْتَارَ لِنَفْسِهِ اَحْسَنَ الْاَسْمَاۤءِ
and chose for Himself the most excellent of all names,
صَلِّ عَلٰى مُحَمَّدٍ وَّ اٰلِ مُحَمَّدٍ
(please) send blessings upon Muhammad and the Household of Muhammad,
وَّافْعَلْ بِىْ
do to me...
كَذَا وَ كَذَا وَ ارْزُقْنِىْ وَ عَافِنِىْ مِنْ كَذَا وَ كَذَا۔
grant me sustenance, and cure me of...
[Instead of the three dots, you may submit your requests and mention your ailed organ.]