In Pakistan and many other parts of the world people visit fake fakeer, sufi & scholars to recite some verses on them from Quran. They visit them with the believe that reciting some particular verses will cure them from disease and they will become healthy.
In most of the cases this is done without any reference from Quran and Sunnah, but there are certain incidents where Prophet Muhammad (PBUH) prescribed certain verses in sickness, such as Surah Fatiha.
The first Surah of Quran, Surah Fatiha was recited by Sahaba on an ill men who become healthy because of this and Prophet Muhammad (PBUH) appreciated this act of Sahaba, this incident is reported in Sahih Bukhari (2156) & Sahih Muslim (2201).
Ibn al-Qayyam a renowned classical scholar said that once I fell sick and was unable to find any doctor so I treated myself by reciting Surah Fatiha. And he claims that he recovered without any medicine. So if you are sick and want to become healthy than recite this surah.