New hives and otherwise well.
A pharmacist can advise on antihistamines and soothing treatments when you have an isolated itchy rash without breathing difficulty, significant swelling or feeling unwell.
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Hives & itching · GP care
Relieve the itch. Know when it is urgent.
Raised, itchy welts that appear and fade are different from persistent itching without a visible rash. We help you choose the right first step, recognise important swelling and understand when a GP assessment may help.
Hives can come and go, and the trigger is not always obvious. Treatment and any prescription depend on your symptoms, medical history and an individual clinical assessment.
Choose a suitable route
Start with the symptoms—not an assumed trigger.
Many episodes of uncomplicated hives settle within a few days. The safest route depends on whether you have raised wheals, deeper swelling, widespread itch, fever or signs of a breathing emergency.
Spreading, recurring or unwell.
Seek urgent advice if hives have not improved after 2 days, are spreading or keep returning, you have a fever or feel unwell, you are worried about a child, or there is swelling under the skin.
Contact NHS 111Persistent or unexplained itching.
Arrange a review if itching is severe, affects daily life, keeps returning, is all over the body, comes with a new rash or swelling, occurs during pregnancy, or has not improved with self-care.
Explore GP appointmentsAsk a pharmacist or GP before choosing an antihistamine for a young child, during pregnancy or breastfeeding, with a long-term condition, or alongside other medicines. Always follow the product label.
Recognise the pattern
Hives can change while you watch.
Hives—also called urticaria—usually cause raised bumps or patches. They can appear anywhere, stay in one area or spread, and may itch, sting or burn.
Raised wheals
Bumps or patches in different shapes and sizes. They may look pink or red on white skin; colour changes can be harder to see on brown or black skin.
A shifting rash
Individual areas may fade as others appear. The rash can stay local or become widespread and may feel itchy, hot, stinging or burning.
Deeper swelling
Swelling under the skin—often around the eyes, lips, hands or feet—is called angioedema. Sudden mouth, tongue or throat swelling is an emergency.
Itch without a rash
Dry or irritated skin is common, but widespread or persistent itching can have other causes and may need an examination or, occasionally, blood tests.
Hives do not automatically mean a food allergy. Possible triggers include infection, medicines, insect bites or stings, heat, cold, pressure, exercise, stress, foods or contact with certain substances—and sometimes no trigger is identified.
A focused GP assessment
Look beyond the label of “allergy”.
A GP can assess whether the pattern fits hives, another skin condition or a cause of itching elsewhere in the body, then decide whether examination, treatment, tests or referral are appropriate.
Explore GP appointments01
Map what happens.
When each episode starts, how long individual marks last, where they appear, whether there is swelling, and any fever, breathing, stomach or general symptoms.
02
Review possible triggers.
Recent infections, new or changed medicines, foods, stings, skin products, pets, work exposures, pressure, exercise, heat, cold and whether scratching changes the rash.
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Choose proportionate next steps.
Many cases need no broad allergy testing. Examination, selected blood tests or specialist referral may be considered when the diagnosis is uncertain, symptoms persist or the history suggests another cause.
A measured treatment plan
Calm the skin. Treat the cause when known.
The right plan depends on the type of rash, age, pregnancy, other conditions and medicines. Avoid combining allergy or cold remedies without checking their active ingredients.
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Antihistamine advice
A pharmacist or clinician may recommend an antihistamine for hives. Less-drowsy options are generally preferred, but drowsiness can still occur—check the label and do not drive or use machinery if affected.
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Skin comfort
Use a cool damp cloth, take a cool or lukewarm shower, apply an unperfumed moisturiser, wear loose cotton clothing and pat or tap the skin instead of scratching.
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Prescription or referral
Depending on the assessment, a GP may consider prescription antihistamines, menthol cream or a short course of steroid tablets. Persistent symptoms may need dermatology or another specialist review.
Avoid long hot showers, perfumed skin products, tight clothing and known triggers where practical. Do not stop a prescribed medicine because you suspect it is involved without getting clinical advice—unless you are having emergency allergy symptoms, when you should call 999.
Capture a disappearing rash
The skin may look normal by the appointment.
Take clear photographs in good light when the rash is active. Include one wider view to show where it is and one close view to show the texture. Note when it started, how quickly each patch changed and whether swelling occurred.
Record recent illness, meals, new medicines or supplements, exercise, heat, cold, pressure from clothing, stings and new skin or household products. Bring the names or photographs of treatments already tried.
Explore video and telephone GP appointments ↗Good to know
Questions about hives and itching.
Clear answers for common concerns—without assuming every itchy rash is an allergy.
Are hives contagious?
Hives themselves are not contagious. However, other itchy rashes can come from infections or infestations, so seek advice if the diagnosis is unclear or other people around you are also itching.
Do hives mean I have a food allergy?
Not necessarily. Foods are one possible trigger, but hives can also follow infection, medicines, stings, temperature, pressure, exercise or stress, and no cause is found in some cases. Avoid cutting out major food groups without clinical advice.
Can hives be assessed by video?
Often, yes. Clear photographs and a video consultation can help assess the appearance, timing, triggers and treatment tried. An in-person examination may be advised if the rash is uncertain, there is swelling or another condition needs to be excluded. Explore remote GP formats.
Which antihistamine should I use?
A pharmacist can suggest a suitable product based on your age, symptoms, health conditions and other medicines. Less-drowsy antihistamines are generally preferred, but any antihistamine can affect some people. Follow the label and check for duplicate ingredients in cough, cold or allergy remedies.
What should I do about itching in pregnancy?
Speak to your midwife or GP. Itching is common in pregnancy, but it can occasionally be a sign of a liver condition called intrahepatic cholestasis of pregnancy, so it should be assessed rather than self-diagnosed.
When might specialist care be needed?
A GP may consider dermatology, allergy or another specialist route when symptoms persist or recur despite appropriate treatment, the diagnosis remains uncertain, angioedema recurs, or the history suggests an underlying condition.
Clinical information: NHS hivesNHS itchy skinNHS angioedemaNHS antihistamines. This information is general and does not replace individual medical advice.