If you are looking for broader Islamic supplications for protection from illness and harm, these official PDFs provide Sahih (authentic) narrations:

The (or Dafil Afat) is a traditional prayer and namaz practiced within the Dawoodi Bohra community, specifically recited for protection and the removal of calamities. PDF and Digital Resources

Reciting Dafil Afat Dua is a simple yet powerful process:

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