Pronunciation: inâ²di-kÄâ²shÅ­n. Definition: The basis for initiation of a treatment for a disease or of a diagnostic test; may be furnished by a knowledge of the cause (causal indication), by the symptoms present (symptomatic indication), or by the nature of the disease (specific indication).
Anyhow, here is a list of some of the causes of itchy skin with no rash: 1  Dry skin. 2  Dry skin can be caused by cold weather and lack of moisturizing. 3  Scabies infection. 4  Poor blood circulation. 5  Iron deficiency. 6  Pregnancy. 7  Obstetric Cholestasis in pregnant women.
Itchy skin can develop for many reasons. It can occur with or without a rash, in small areas or the whole body. Identifying the cause is important to ensure proper treatment. While there are several potential causes of itchy skin, it has not been directly linked to a vitamin B-12 deficiency. However, vitamin B-12 is important to healthy skin and may be a potential treatment for eczema.