Answering your second question, you might find two works especially useful in the context of Islamic traditional medicine. One is Cannon of Medicine, a medical encyclopedia complied by Ibn Sina (Avicenna), the highly renowned Persian Muslim polymath.
The other notable work, is Al-Risalah al-Dhahabiah, (the Golden Treatise), a dissertation on health and remedies authored by Ali al-Ridha, a very pious Muslim scholar from the lineage of the Holy Prophet who is also considered the 8th infallible authority in Twelver Shia Islam.
What is notable with both works is that they are based on the Humorist medicine which is arguably the Islamic approach to medicine and health. Humorism traces all health problems to an imbalance between four main humors that make up human nature. References to these humors in the hadiths attributed to the Holy Prophet support this idea.