These duas are for asking Allah for healing — for yourself when you feel pain, and for others when you visit them. Seeking medical treatment is also part of the Sunnah; the duas accompany it rather than replace it.
لَا بَأْسَ، طَهُورٌ إِنْ شَاءَ اللَّهُ
Transliteration: La ba'sa, tahurun in sha' Allah.
Translation: No harm — it is a purification (from sins), if Allah wills.
Source: Sahih al-Bukhari 5656
When to recite: When visiting someone who is ill.
أَسْأَلُ اللَّهَ الْعَظِيمَ رَبَّ الْعَرْشِ الْعَظِيمِ أَنْ يَشْفِيَكَ
Transliteration: As'alullahal-'Azim, Rabbal-'arshil-'azim, an yashfiyak.
Translation: I ask Allah the Magnificent, Lord of the Magnificent Throne, to cure you.
How many times: 7 times
Source: Sunan Abi Dawud 3106; Jami at-Tirmidhi 2083
When to recite: At the bedside of a sick person whose appointed time has not come.
اللَّهُمَّ رَبَّ النَّاسِ، أَذْهِبِ الْبَاسَ، اشْفِهِ وَأَنْتَ الشَّافِي، لَا شِفَاءَ إِلَّا شِفَاؤُكَ، شِفَاءً لَا يُغَادِرُ سَقَمًا
Transliteration: Allahumma Rabban-nas, adhhibil-ba's, ishfihi wa antash-Shafi, la shifa'a illa shifa'uk, shifa'an la yughadiru saqama.
Translation: O Allah, Lord of mankind, remove the hardship and heal him, for You are the Healer. There is no healing except Your healing — a healing that leaves no illness behind.
Source: Sahih al-Bukhari 5743, 5675; Sahih Muslim 2191
When to recite: When visiting a sick person or treating yourself or a family member; it may be said while gently wiping the person with the right hand.
بِسْمِ اللَّهِ (×٣)، أَعُوذُ بِاللَّهِ وَقُدْرَتِهِ مِنْ شَرِّ مَا أَجِدُ وَأُحَاذِرُ (×٧)
Transliteration: Bismillah (3 times). A'udhu billahi wa qudratihi min sharri ma ajidu wa uhadhir (7 times).
Translation: In the name of Allah (three times). I seek refuge in Allah and His power from the evil of what I feel and what I fear (seven times).
How many times: Bismillah 3 times, then the dua 7 times
Source: Sahih Muslim 2202
When to recite: When you feel pain, placing your hand on the part of the body that hurts.
أَنِّى مَسَّنِىَ ٱلضُّرُّ وَأَنتَ أَرْحَمُ ٱلرَّٰحِمِينَ ﴿٨٣﴾
Transliteration: Anni massaniyad-durru wa anta arhamur-rahimin.
Translation: Lo! adversity afflicteth me, and Thou art Most Merciful of all who show mercy.
Source: Quran 21:83 (Surah Al-Anbiya)
When to recite: During illness, pain or any prolonged hardship.
Hadith references follow the standard numbering on sunnah.com. Quranic Arabic is the Uthmani text with the Pickthall (1930, public domain) translation; other translations are our own.