When the etiology (the cause, set of causes, or manner of causation of a disease or condition) for the disease is known, then specific<unk>  may be instituted, but it is generally associated with<unk> , as well.<unk>  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: * Low-grade fever for 15 days or more is sometimes the only symptom of bacteremia by staphylococcus bacteria. Suppressing it by<unk>  will hide the disease from effective diagnosis and<unk>  with antibiotics. The consequence may be severe (rheumatic fever, nephritis, endocarditis, etc.) * Chronic headache may be caused simply by a constitutional disposition or be the result of a brain tumor or a brain aneurysm. Finally,<unk>  is not exempt from adverse effects, and may be a cause of iatrogenic consequences (i.e., ill effects caused by the<unk>  itself), such as allergic reactions, stomach bleeding, central nervous system effects (nausea, dizziness, etc.).
Symptomatic treatment
Topical steroid
Helminthic therapy
Topical glucocorticoids
Plesiotherapy
Treatment of human lice
Ozone therapy
Photoimmunotherapy