as salam alaikum
books in English language on "Islamic Medicine" are:
1) "Healing with the Medicine of the Prophet" by Ibn Jawzi.
2) "Medicine of the Prophet" by al-Suyuti.
3) "Islamic Medical Wisdom" attributed to 'Abdullah Ibn Sabur al-Zayyat.
It would be appropriate to compare these books with more reliable collections of hadith and more specific essays on "Islamic Medicine".
With prayers for your success.