روى ابن أبى شَيْبَةَ فى "مسنده"، من حديث عبد الله بن مسعود، قال: بينا رسولُ اللهِ صلى الله عليه وسلم يُصلِّى، إذ سجد فَلَدَغَتْه عقربٌ فى أُصبعه، فانصرفَ رسولُ اللهِ صلى الله عليه وسلم وقال: "لَعَنَ اللهُ العَقْرَبَ ما تَدَعُ نبيّاً ولا غَيْرَه"، قال: ثُمَّ دعا بإناءٍ فيه ماء ومِلح، فَجَعَلَ يَضَعُ موضِعَ اللَّدغة فى الماء والمِلحِ، ويقرأُ: {قُلْ هُوَ اللهُ أَحَدٌ، والمُعَوِّذَتَيْن} حتى سكنتْ
Narrated by Tirmizi, that Abdullah Bin Masood Radi Allaho Anh reported that once, Prophet Muhammad Sallallaho Alaihe Wasallam was praying and when he was in Sajdah, a scorpion suddenly stung him on the finger. When Prophet Muhammad Sallallaho Alaihe Wasallam finished his prayer, he said "May Allah Put His Curse on the scorpion, as it never leaves even the Prophets or others. Then he asked for a pot filled with water; in which some salt was also added, Prophet Muhammad Sallallaho Alaihe Wasallam was dipping his finger (stung by the scorpion) in that salted water, & he was reciting Surah Ikhlaas & Muawwazatain & blowing on his finger till the pain was all gone".
The above Hadith covers the aspect of a compound medicine (mixture), including both the spiritual cure (by Surah Ikhlaas & Muawwazatain) and the natural cure by salted water.