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.
Depending on the causes of your rash, at time rash on the arms and legs may not be itchy. The most common causes of itch less rash on arms and legs would include: Bumpy Skin Rash not Itchy. Acne, a long-term skin disease that occurs when hair follicles become clogged with dead skin cells and oil from the skin.