بسم الله الرحمن الرحيم

الجواب حامداومصليا

The Prophet Muhammad (صلي الله عليه وسلم) always had encouraged us to take treatments to help sustain life and our well being. He also mentioned that with every disease there is a treatment and Shifa.

So If there is a treatment for an illness/ disease then you must use that treatment. Also with alongside the treatment you can recite verses of the Quran or Ruqya for healing (Shifa). I have not come across any specific virtue that Surah Rahman cures diseases. However, saying this you can recite Surah Rahman and other Surah and verses with the intention of healing based on the verse below.

وَنُنَزِّلُ مِنَ ٱلۡقُرۡءَانِ مَا هُوَ شِفَآءٌ۬ وَرَحۡمَةٌ۬ لِّلۡمُؤۡمِنِينَ

We reveal the Qur’an, which is cure and mercy for the believer. (15:81)

Also, reciting Surah Fatiha (also known as Surah Ash Shifa) seven times is used for Shifa as practiced in the Hadith and Sunnah.

And Allah knows best.

02 Ramadhan 1442/15 April 2021