In short
Itchy skin is not usually a sign of anything serious.
What it is1
Sometimes itching is caused by dry, cracked or irritated skin.
NHS website
Worth knowing1
Itchy skin has many possible causes.
NHS website
What helps2
Things that can help: pat or tap your skin instead of scratching it; hold something cool on your skin, like a damp towel; have cool or lukewarm baths or showers; use an fragrance-free moisturizer or emollient regularly; keep your nails clean, short and smooth; wear loose cotton or silk clothing; use a laundry liquid or powder that's for sensitive skin.
NHS websiteA pharmacist can tell you what the best products are for itchy skin.
NHS website
What to avoid1
Things to avoid: do not wear tight clothes, or clothes made from wool or synthetic fabrics; do not spend a long time in the bath or shower; do not use fragranced soaps, deodorants or moisturizers.
NHS website
See a provider if1
See a health care provider if itchy skin is affecting your daily life; does not get better with self care or keeps coming back; is caused by a new rash, lump or swelling that you're worried about; is all over your body; is severe; happens during pregnancy.
NHS website
Sources
Contains public sector information licensed under the Open Government Licence v3.0.
These pages describe what the sources say. They cannot say what is going on with your skin.
See what is going on with your skin.
A one-minute scan on your iPhone, a plain answer mapped to your face, and what helps, with its source. Free to start.