Health is the state of harmony between the body and mind. Disturbance of harmony results in disease which is expressed in the form of signs and symptoms. In every case of a disease, a person gives two types of symptoms - Common and Uncommon. Common symptoms are those symptoms which are found in most cases of a particular disease, whereas uncommon symptoms reflect the individuality of a patient. This is the basis for the individualizing each patient in homeopathy.
Each organ has no separate existence in the body, i.e. the organs are interdependent. When a particular organ is defective, the chain of harmony is broken and the disease results. In Homeopathy, the patient should be treated as a whole rather than treating each organ separately.
For example, In maxillary sinusitis, the pus in the sinus causes pressure on the gums there by spreading the bacteria and causing gum and tooth infection. In this case, since there is one cause for both the sinusitis and the gum infection (genguitis), the remedy should also be one for both problems.
Cure means removal of signs and symptoms, removal of tendency to get the disease and restoration of complete health. Cure should be brought by individualizing each patient, selecting a remedy by law of similars, and administering a minimum, diluted, potentised dose with no side effects.
The mind and emotions are also considered in treating the patient in homeopathy. At the end of the treatment, not only are the symptoms removed, but the mind also becomes calm and peaceful. Modern medicine has recently started accepting the fact that many diseases (e.g. Migraine, acidity, ulcer, hypertension, and diabetes) are psychosomatic, whereas homeopathy has been considering this to be true for the past 200 years.
To treat disease, the body needs a little stimulus to its own healing process. Administered medicine doesn't have to directly fight the disease, rather, the body should fight the disease there by improving its general resistance and reducing the probability of developing new diseases