Dua When Ill or Having Disease

للَّهُمَّ رَبَّّ النَّاسِ أَذْهِبِ الْبَأْسَ رَبَّ النَّاسِ وَاشْفِ أَنْتَ الشَّافِيلَا شِفَاءَ إِلَّا شِفَاؤُكَ شِفَاءٌ لَا يُغَادِرُ سَقَمَاًO Allah, Lord of the people, remove all harm, give cure, for you are the one who cures. There is no curing except Your curing – a curing that leaves no illness.(Bukhari)Source:Central Mosque