4 duas to recite during sickness

1) Dua to read during pain
Nabi ﷺ said, “Place your hand on the body where you feel the pain, say bismillah three times and recite seven times:
اَعُوْذُ باللّٰهِ وَقُدْرَتِهِ مِنْ شَرِّ مَا اَجِدُ وَاُحَاذِر
I seek refuge in Allah and His power from the pain I feel and fear” (Muslim).

2) Cure from sickness
اَللّٰهُمَّ رَبَّ النَّاسِ أَذْهِبِ الْبَاسَ وَاشْفِ وَاَنْتَ الشَّافِي لَا شِفَاءَ إِلَّا شِفَاؤُكَ، شِفَاءً لَا يُغَادِرُ سَقَمًا
O Allah, Lord of the people. Remove the disease and cure [the patient], as You are the One who cures. There is no cure but Yours, a cure that leaves no disease (Bukhari).

3) Dua of Yunus (AS)
Recite during any difficulty:
لَا إلٰهَ إِلَّا اَنْتَ سُبْحَانَكَ اِنِّيْ كُنْتُ مِنَ الظَّالِمِيْن
There is no diety except You. Exalted are You, indeed I have been of the wrongdoers (Qur’an, 21:87).

4) Dua of Ayyub (AS)
أَنِّيْ مَسَّنِيَ الضُّرَّ وَاَنْتَ أَرْحَمُ الرَّاحِمِيْن
Indeed harm has afflicted me, and You are the Most Merciful of all those who show mercy (Qur’an, 21:83).