Itchy skin, also known as pruritus, is a common irritation of the skin that makes you want to scratch the itchy area. It can occur anywhere on the body and can be very frustrating and uncomfortable. Itching may occur on a small part of the body, such as around the area of an insect bite, or it can affect the whole body, such as an allergic reaction. Common causes of itchy skin include:

• Skin conditions: Examples include dry skin, eczema, psoriasis, scabies, parasites, burns, scars, insect bites, and hives.

• Internal diseases: Itching on the whole body might be a symptom of an underlying illness, such as liver disease, kidney disease, anemia, diabetes, thyroid problems, and certain cancers.

• Nerve disorders: Examples include multiple sclerosis, pinched nerves, and shingles (herpes zoster).

• Psychiatric conditions: Examples include anxiety, obsessive-compulsive disorder, and depression.

• Irritation and allergic reactions: Wool, chemicals, soaps, and other things can irritate the skin and cause rashes and itching. Sometimes a substance, such as poison ivy or cosmetics, causes an allergic reaction. Also, reactions to certain medicines, such as narcotics to treat pain (opioids), can cause itchy skin.

To get relief from itchy skin, you must know which skin condition you have. The best way to get an accurate diagnosis is to see a board-certified dermatologist. However, some self-care measures can provide relief, such as moisturizers, gentle cleansers, lukewarm baths, and avoiding scratching, wearing irritating fabrics, and exposure to high heat and humidity. If the itching is severe, does not go away after a few weeks, or does not have an apparent cause, it is recommended to contact a healthcare provider.