hives X ray explained

Overview

Hives are itchy, raised red or pink welts on the skin. They happen when your body releases a chemical called histamine in response to something that irritates it, such as food, medicine, or an infection. An X-ray is a type of imaging test that takes a picture of the inside of your body. It uses harmless amounts of radiation. Usually, an X-ray is not needed to diagnose hives, but doctors sometimes order one to check for an infection or another illness that may be causing the hives.

Yes, hives are very common. Around one in five people will get hives at some point in their life. They can happen to anyone, and they are not a sign of a serious illness in most cases.

Hives can affect people of any age, from babies to older adults. People who have allergies or a family history of hives are more likely to get them. Hives are also more common in people with asthma or other allergic conditions.

Symptoms

Common symptoms

• Itchy red or pink welts on the skin
• Welts that are different sizes and shapes
• Welts that make the skin look swollen or puffy
• A burning or tingling feeling where the welts are
• Welts that may disappear and return in different places

Symptoms in children

• Hives in children often appear all of a sudden
• Food allergies and infections are common triggers
• Children may scratch a lot, which can make the welts worse
• Most childhood hives are harmless and clear up within a few days

Symptoms in older adults

• Older adults may get hives from medicine they take regularly
• Hives can last longer and may need a doctor’s advice
• Swelling of the lips or eyes (angioedema) is more common
• Stress or a hidden health condition can be a cause

Causes

Main causes

• Allergies to foods like peanuts, seafood, eggs, or dairy
• A reaction to a medicine, even one you have used before
• Viral or bacterial infections, such as a cold or sore throat
• Insect bites or stings
• Physical triggers like heat, cold, pressure, or sunlight
• Stress or emotional upset

Risk factors

• Having a personal or family history of allergies
• Having asthma or eczema
• Having had hives before
• Recent illness or infection
• A health condition that affects the immune system, like lupus or thyroid disease

When to see a doctor

See a doctor urgently if:

• If you have trouble swallowing or breathing, call your local emergency number right away.
• If you have ever had a severe allergic reaction, you should have an action plan from your doctor and follow it.
• If you get hives near a bad reaction, you need urgent medical help.

Book a routine appointment if:

• Make a routine appointment if hives last longer than six weeks.
• If hives keep coming back and you do not know why, ask your doctor about allergy testing.
• If the itching interferes with your sleep, work, or daily life.

Diagnosis

Doctors can usually diagnose hives by looking at your skin and talking with you about your symptoms and what may have caused them. They will ask about recent foods, medicines, infections, and other changes in your life. An X-ray is not a routine test for hives, but a doctor might request one if they suspect an underlying infection or a condition like sinusitis or pneumonia that could be linked to the hives.

Tests that may be done

• Physical examination of the welts
• A detailed conversation about your medical history
• Allergy skin tests to look for triggers
• Blood tests to check for signs of other health conditions
• A chest or sinus X-ray if the doctor suspects an infection

What to expect at your appointment

Your doctor will ask questions and may examine the affected skin. If an X-ray is suggested, you will be taken to the X-ray room. You will remove any metal items and lie or stand in a certain position. The test takes only a few minutes and is painless. Your doctor will discuss the results with you, usually within a day or two.

Treatment

Treatment for hives usually focuses on relieving itching and swelling while the body recovers. The most important step is to find and avoid whatever is causing the hives. If you cannot find the cause, your doctor can help you manage symptoms with medicines and other tips.

Self-care at home

• Use cool and wet compresses over the itchy areas
• Take a cool bath or shower, avoiding very hot water
• Wear loose and soft clothing like cotton
• Do not scratch — pat or gently rub the skin instead
• Keep a notebook to track your meals, activity, and stress to help find triggers

Medical treatments

Doctors often prescribe or recommend medicines that help reduce the allergic response. These are sometimes called anti-allergy medicines. They come in different forms, like tablets or creams. In more severe cases, your doctor might suggest a short course of stronger medicine to reduce swelling. Always ask your doctor or pharmacist about what is suitable for you, and never share medicines with another person.

When is surgery considered?

Surgery is not a treatment for hives. It may be needed for rare underlying conditions that cause hives, such as a problem in the sinuses or lungs, but this is very unusual.

Living with this condition

Living with hives often means learning to pay attention to your body. Keep a record of when hives appear, what you were doing, and what you ate or drank. This can help you notice triggers. Try to manage stress because stress can make hives worse. Giving your skin time to calm down and avoiding scratching can help you feel better.

Lifestyle tips

• Aim for enough sleep, because lack of sleep can worsen stress and itching
• Try stress-lowering activities like deep breathing, gentle stretching, or talking with a friend
• Choose mild, unscented soaps and creams
• Avoid very hot baths or saunas if they make hives worse

Diet and exercise

A normal, balanced diet is fine for most people with hives. There is no special diet proven to prevent hives. Some people notice that spicy foods, alcohol, or certain preservatives trigger their symptoms — if that is true for you, it is sensible to avoid those items. Exercise is good for your health, but if you notice hives after exercising, talk to your doctor, especially if they happen with trouble breathing.

Mental health and emotional wellbeing

Hives can be frustrating and uncomfortable, especially if they happen often. It is normal to feel stressed or self-conscious. If hives are affecting your sleep or your mood, talk to your doctor. They can help you find ways to cope. You may also find it helpful to speak with a counsellor or a support group.

Prevention

If you already know what causes your hives, you can often prevent them by avoiding that trigger. For example, staying out of the sun, dressing for the cold, or stopping a medicine (with your doctor’s advice) may help. For hives caused by stress, using relaxation techniques and taking breaks can lower your risk.

Vaccines

Vaccines do not prevent hives directly. But getting recommended vaccinations can lower the chance of infections that might trigger hives. Talk to your doctor about which vaccines are right for you.

Screening programmes

There is no routine screening for hives. However, if you have long-lasting or repeated hives, your doctor may suggest blood tests to look for hidden conditions like thyroid problems or autoimmune disease.

Complications

If left untreated

• Most hives are harmless and go away without treatment
• If hives come with a severe allergic reaction, not getting help quickly can be dangerous
• Chronic hives can last for months and affect quality of life
• In rare cases, hives can be a sign of another health problem, such as a thyroid or liver condition

Long-term outlook

The outlook for hives is very good. Most cases are temporary and clear within a few days. Even people with chronic hives — episodes that last for weeks or months — often find that symptoms improve with the right treatment. With the help of your healthcare team, you can manage hives and keep doing the things you enjoy.

Find support

External links open third-party websites. Ruqelo Health is not responsible for external content. Listing an organisation does not imply endorsement.