Classical homeopathy is the second biggest medical system used by hundreds of thousands of medical doctors worldwide.
The principles of treatment are based on laws where:

*likes cure likes (Similia Similibus currentur, Samuel Hahnemann)
*only one remedy is used at a time
*potentised medicines following a process of diluting and shaking by globally accepted instructions of the Pharmacopoeia are used
*the complex process of transformation of the health state to the better should go in general from inward outward, from above downward and from the most recent health problems towards the older ones (Herrings law).