The Prophet ﷺ said: The best medical treatment you apply is cupping.  

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ إِنْ كَانَ فِي شَىْءٍ مِمَّا تَدَاوَيْتُمْ بِهِ خَيْرٌ فَالْحِجَامَةُ  

the maid-servant of the Messenger of Allah ﷺ, said: No one complained to the Messenger of Allah ﷺ of a headache but he told him to get himself cupped, or of a pain in his legs but he told him to dye them with henna.  

عَنْ جَدَّتِهِ سَلْمَى خَادِمِ رَسُولِ اللَّهِ ﷺ قَالَتْ مَا كَانَ أَحَدٌ يَشْتَكِي إِلَى رَسُولِ اللَّهِ ﷺ وَجَعًا فِي رَأْسِهِ إِلاَّ قَالَ احْتَجِمْ وَلاَ وَجَعًا فِي رِجْلَيْهِ إِلاَّ قَالَ اخْضِبْهُمَا