العسل
A sweetener, food, and topical dressing described in the Qur'an as containing 'healing for people.' Prescribed repeatedly for a companion's stomach ailment until he recovered.
عَلَيْكُمْ بِالشِّفَاءَيْنِ: العَسَلِ وَالقُرْآنِ
“Hold fast to the two sources of healing: honey and the Qur'an.” (meaning, not a literal translation)
A man told the Prophet ﷺ his brother had a stomach complaint. He was told to give him honey — three times, until on the fourth the man recovered. (Sahih al-Bukhari 5684; Sahih Muslim 2217)
Ibn al-Qayyim describes honey as cleansing for the blood vessels and intestines, useful both as food and applied externally to wounds, and especially suited to those with a cold, phlegmatic constitution.