Causes of itchy skin include:
Skin conditions. Many skin conditions itch, including dry skin (xerosis), eczema (dermatitis), psoriasis, scabies, burns, scars, insect bites and hives.
Internal diseases. Itchy skin can be a symptom of an underlying illness. These include liver disease, kidney failure, iron deficiency anemia, thyroid problems and certain cancers, including multiple myeloma and lymphoma.
Nerve disorders. Conditions that affect the nervous system — such as multiple sclerosis, diabetes, pinched nerves and shingles (herpes zoster) — can cause itching.
Psychiatric diseases. Examples of psychiatric diseases that can cause itchy skin are anxiety, obsessive-compulsive disorder and depression.
Irritation and allergic reactions. Wool, chemicals, soaps and other substances can irritate the skin and cause itching. Sometimes the substance, such as poison ivy, parasites or cosmetics, causes an allergic reaction. Also, reactions to certain drugs, such as narcotic pain medications (opioids) can cause itchy skin.
Pregnancy. During pregnancy, some women experience itchy skin.
Sometimes the cause of the itching can't be determined.
Try oatmeal soap or soaks.
See your dermatologist.
Anxiety can also cause itching. If that is the case seek counseling