Homeopathy is derived from "Homios" and "Pathy". That means similar system where "an illness can be treated by a remedy which when administered to a healthy individual, capable of producing similar illness".
"Human being is more than some total of its parts". An individual suffering from chronic condition often has emotional stress, inherited genetic tendencies and has poor lifestyle with history of past illnesses. For a proper curative treatment all these are required to be treated. A good Homeopathic treatment will cover all these effectively. In Homeopathy we follow these emphatically and our prescriptions are principally guided by them.
Homeopathy can be safely employed for a wide range of illness as first line of treatment. However for many conditions (Hypertension, Diabetes Mellitus, Cancers, Heart Disease, Convulsions etc.) it should play the role of complimentary medicine. We have a comprehensive list of the disease mentioned in Diseases & Treatment page.
There is no toxic effect of Homoeopathic remedies. However in certain individuals it may aggravate an ongoing illness or replay an old illness, from a common perspective these may appear as side effects but these are transient and are completely reversible.
No, homoeopathy never use self medication because physician have that much knowledge how much dose you required & how much amount can be tolerated by you it was skill that physician only have so 1st consult with your homoeopathic physician.