When Messenger of Allah ﷺ visited the sick he would say: Lord of the people. remove the disease, cure him, for Thou art the great Curer, there is no cure but through Thine healing Power, which leaves nothing of the disease.
أَنَّ رَسُولَ اللَّهِ ﷺ كَانَ إِذَا عَادَ مَرِيضًا يَقُولُ أَذْهِبِ الْبَاسَ رَبَّ النَّاسِ اشْفِهِ أَنْتَ الشَّافِي لاَ شِفَاءَ إِلاَّ شِفَاؤُكَ شِفَاءً لاَ يُغَادِرُ سَقَمًا