What does it mean when hives keep coming back?
Acute hives that arise quickly after being exposed to a food or insect sting can be a sign of life-threatening anaphylaxis and may require immediate treatment with an epinephrine auto-injector. Hives that keep recurring for 6 weeks or more are called chronic hives – and they are rarely caused by allergy.
What causes hives in children?
People can get hives for lots of different reasons (though sometimes, the cause is not known). One common reason for getting hives is an allergic reaction. Some common allergic triggers are certain foods (like milk, wheat, eggs, shellfish, berries, and nuts), medicines (such as antibiotics), and insect stings or bites.
What virus causes hives?
Viral infections associated with acute urticaria include acute viral syndromes, hepatitis (A, B, and C), Epstein-Barr virus, and herpes simplex virus. Streptococcal infection (see the photograph below) has been reported as the cause of 17% of acute urticaria cases in children.
When should you worry about hives?
Tell your doctor if you keep getting bouts of hives that last a month or more. Call 911 or get emergency medical help immediately if any of these things happen: 1. You start to get burning or itchy welts in your throat.
Which food triggers hives?
The most common foods that cause hives are nuts, chocolate, fish, tomatoes, eggs, fresh berries, soy, wheat, and milk. Fresh foods cause hives more often than cooked foods. Certain food additives and preservatives may also be to blame.
Can Benadryl help with hives?
Treatments Doctors Use for Hives
Doctors usually prescribe antihistamines as a first course of treatment for hives. Acute cases can generally be treated with over-the-counter antihistamines like Benadryl, Claritin (loratadine), Allegra (fexofenadine), and Zyrtec (cetirizine).
When should I be concerned about my child’s hives?
When should someone be concerned about their child’s hives? A. If hives are present in addition to other symptoms such as tongue or mouth swelling, breathing trouble, vomiting or abdominal pain, fainting or other complaints, it is important to see a doctor right away.
What do stress hives look like?
Stress hives can look a little like bug bites: both are red, puffy, and itchy, and may appear initially as individual bumps, says Stevenson. However, hives are more often irregular in shape and can join together in larger patches, especially if you scratch them.
What does hives look like on a child?
If your child has hives, they may have raised round wheals that look like mosquito bites. The wheals are red on the outside and can be white in the middle. Hives are normally very itchy, but can also sting. A single wheal often lasts several hours before fading without trace.
Are hives autoimmune?
In about half of patients with chronic idiopathic hives, the explanation is that body’s immune system is, in a sense, overactive. The urticaria is “autoimmune”. The immune system is attacking the normal tissues of the body and causing hives as a result.