avoiding irritating the area
avoiding hot water, which may aggravate the hives
taking a cool or lukewarm bath with colloidal oatmeal or baking soda
Seek emergency medical care
See a healthcare professional if you have severe hives or hives that last for more than a few days.
Chronic hives do not put you at sudden risk of a serious allergic reaction, called anaphylaxis. If you get hives as part of a severe allergic reaction, seek emergency care. Symptoms of anaphylaxis include dizziness, trouble breathing, and swelling of the tongue, lips, mouth or throat.
In many cases, hives are an acute (temporary) problem that may be alleviated with allergy medications. Most rashes go away on their own. However, chronic (ongoing) cases, as well as hives accompanied by a severe allergic reaction, are larger medical concerns.
What causes hives?
Hives are usually caused by an allergic reaction to something that you have encountered or swallowed. When you have an allergic reaction, your body begins to release histamines into your blood. Histamines are chemicals your body produces in an attempt to defend itself against infection and other outside intruders.
In some people, histamines can cause swelling, itching, and many of the symptoms that are experienced with hives. In terms of allergens, hives can be causedTrusted Source by factors such as pollen, medications, food, animal dander, and insect bites.
Hives might also be caused by circumstances besides allergies. It’s not uncommon for people to experience hives as the result of stress, tight clothes, exercise, illnesses, or infections.
It’s also possible to develop hives as the result of excessive exposure to hot or cold temperatures or from irritation due to excessive sweating. Because there are several potential triggers, many times the actual cause of hives can’t be determined.
Who is at risk?
People who are known to have allergies are more likely to get hives. You may also be at risk of developing hives if you’re taking medication or if you’re unknowingly exposed to things you may be allergic to, such as food or pollen. If you’re already ill with an infection or a health condition, you may be more vulnerable to developing hives.
Symptoms
