اللَّهُمَّ إِنِّي أَعُوذُ بِكَ مِنَ الْبَرَصِ وَالْجُنُونِ وَالْجُذَامِ وَمِنْ سَيِّئِ الْأَسْقَامِ
Allahumma inni a'udhu bika minal-barasi wal-jununi wal-judhami wa min sayyi'il-asqam
Allaahumma waxaan kaa magan galayaa cudurka cad-caddiga, waallannimada, murunka, iyo cudurrada xun.
Recite regularly for protection from severe diseases
The Prophet (PBUH) would seek refuge from these severe and incurable diseases.