Amal for a person affected by Jinn

The following is a prescription for a person who is affected by Jinn.

Read the below ayat 41 times and blow on mustard oil. Then apply this mustard oil to the nostrils, to the ear canals, under the armpits, and above the area of the heart, and on the 20 nails.

The ayat is:

إِنَّ الَّذِينَ فَتَنُوا الْمُؤْمِنِينَ وَالْمُؤْمِنَاتِ ثُمَّ لَمْ يَتُوبُوا فَلَهُمْ عَذَابُ جَهَنَّمَ وَلَهُمْ عَذَابُ الْحَرِيقِ (البروج:10)