Symptomatic treatment or supportive care is any medical therapy of a disease that only affects its symptoms, not the underlying cause. It is usually aimed at reducing the signs and symptoms for the comfort and well-being of the patient, but it also may be useful in reducing organic consequences and sequelae of these signs and symptoms of the disease. In many diseases, even in those whose etiologies are known (e.g., most viral diseases, such as influenza), symptomatic treatment is the only one available so far.
Examples of symptomatic treatments:
When the etiology for the disease is known, then specific treatment may be instituted, but it is generally associated to symptomatic treatment, as well.
Symptomatic treatment is not always recommended, and in fact it may be dangerous, because it may mask the presence of an underlying etiology which will then be forgotten or treated with great delay. Examples:
Finally, symptomatic treatment is not exempt from adverse effects, and may be a cause of iatrogenic consequences (i.e., ill effects caused by the treatment itself), such as allergic reactions, stomach bleeding, central nervous system effects (nausea, dizziness, etc.).