The Messenger of Allah ﷺ forbade the use of foul remedies.
حدثنا سويد بن نصر أخبرنا عبد الله بن المبارك عن يونس بن أبي إسحق عن مجاهد
نهى رسول الله ﷺ عن الدواء الخبيث
No references are available.
[Sahih] Abu Dawud also collected it in the Book of Medicine, chapter on disliked medicines, no. 3870, and Ibn Majah, no. 3459, from the hadith of Yunus through this chain. Hakim graded it sahih according to the conditions of the two Shaykhs, 4/410, and Dhahabi agreed with him.