Assalamu’alaikum warahmatullahi wabarakatuh,
IN THE NAME OF ALLAH, THE MOST BENEFICENT, THE MOST MERCIFUL
In the Qur’aan and du’aa’ there may be healing for all ills, by Allaah’s leave. There is a great deal of evidence for that, for example Allaah says (interpretation of the meaning):“Say: ‘It is for those who believe, a guide and a healing’”[Fussilat 41:44]“And We send down of the Qur’aan that which is a healing and a mercy to those who believe”[al-Israa’ 17:82]
The Prophet (peace and blessings of Allaah be upon him), when he was suffering from some ailment, would recite into his hands when going to sleep, “Qul Huwa Allaahu Ahad” and al-Mi’wadhatayn [i.e., the last three soorahs of the Qur’aan], three times, each time wiping as much of his body as he could, starting with his head and face and chest. He did this every time he went to sleep, as was reported in the saheeh hadeeth narrated from ‘Aa’ishah (may Allaah be pleased with her).
Allah Knows Best