Narrated Usamah ibn Sharik:

I came to the Prophet ﷺ and his Companions were sitting as if they had birds on their heads. I saluted and sat down. The desert Arabs then came from here and there. They asked: Messenger of Allah, should we make use of medical treatment? He replied: Make use of medical treatment, for Allah has not made a disease without appointing a remedy for it, with the exception of one disease, namely old age.

حَدَّثَنَا حَفْصُ بْنُ عُمَرَ النَّمَرِيُّ، حَدَّثَنَا شُعْبَةُ، عَنْ زِيَادِ بْنِ عِلاَقَةَ، عَنْ أُسَامَةَ بْنِ شَرِيكٍ، قَالَ أَتَيْتُ النَّبِيَّ ﷺ وَأَصْحَابُهُ كَأَنَّمَا عَلَى رُءُوسِهِمُ الطَّيْرُ فَسَلَّمْتُ ثُمَّ قَعَدْتُ فَجَاءَ الأَعْرَابُ مِنْ هَا هُنَا وَهَا هُنَا فَقَالُوا يَا رَسُولَ اللَّهِ أَنَتَدَاوَى فَقَالَ
" تَدَاوَوْا فَإِنَّ اللَّهَ عَزَّ وَجَلَّ لَمْ يَضَعْ دَاءً إِلاَّ وَضَعَ لَهُ دَوَاءً غَيْرَ دَاءٍ وَاحِدٍ الْهَرَمُ " .