Hives are usually circular or oval raised red bumps, often with a pale center. They range from small less than 1 cm to quite large. They are intensely itchy, are often worse at night and somewhat transient. They may crop up over an hour or two and then disappear within 24 hours. Hives can appear alone, in a group, or over a large part of the body. Anyone can get hives. But children with allergies are at a greater risk. The doctor can try to help figure out what might be causing your hives, although often the cause will remain a mystery.
If you're getting hives a lot, or your reaction was serious, your doctor might send you to another doctor who specializes in allergies. Sometimes, doctors will suggest you take a type of medicine called an antihistamine to relieve the itchiness. In many cases, hives clear up on their own without any medication or doctor visits. Less often, hives can be a sign of a more serious allergic reaction that can affect breathing and other body functions.
In these cases, the person needs immediate medical care. Some people who know they have serious allergies carry a special medicine to use in an emergency. This medicine, called epinephrine, is given by a shot. Usually, a nurse gives you a shot, but because some allergic reactions can happen really fast, many adults and kids carry this emergency shot with them and know how to use it, just in case they ever need it in a hurry. Yes and no. The answer is "yes" if you know what causes your hive.
If you know something causes you trouble, you can try to avoid it. If you get hives when you're nervous, relaxation breathing exercises may help. But if you don't know why you get hives, it's tough to prevent them. These hives commonly come and go for a few days to weeks. Hives occur when a chemical called histamine is released. If hives are present for over a few days with no obvious cause, allergy tests are not needed, in these cases there is generally no external trigger and the hives with gradually improve with time.
If hives appear soon after a certain food, medicine or insect sting, and resolve within a few hours after no further exposure to this trigger, then allergy testing may be indicated. Most of the time, hives as the only symptom can be safely managed at home, without the need to see a doctor.
A pharmacist might provide you with some non drowsy antihistamine medication for relief of symptoms during an episode. These are safe to use from six months of age and can be used once or twice daily if needed. The best treatment for hives is to avoid the cause or trigger, however this is not always possible. If at any time the hives are associated with other symptoms high fever, bruising, purple skin discolouration or joint pains , your child should be seen by a doctor.
Antihistamine medication won't treat existing hives, but it will prevent hives from getting worse and prevent new hives from erupting. If your child is exposed to a known trigger, it is best to give them antihistamine medication as soon as you can. Are there any creams I can put on my child's hives to stop them itching? Talk to your pharmacist about creams and lotions that may help reduce the intensity of the itching.
The most effective creams will include antihistamine. Should I take my child to see an allergy specialist to find out the cause of his hives? If you are unable to determine the trigger, it is useful to keep a food and activity diary.
An allergy specialist can also perform further testing to determine the most likely triggers for your child's hives. We acknowledge the input of RCH consumers and carers. To donate, visit www. This information is intended to support, not replace, discussion with your doctor or healthcare professionals. The authors of these consumer health information handouts have made a considerable effort to ensure the information is accurate, up to date and easy to understand.
The Royal Children's Hospital Melbourne accepts no responsibility for any inaccuracies, information perceived as misleading, or the success of any treatment regimen detailed in these handouts. Information contained in the handouts is updated regularly and therefore you should always check you are referring to the most recent version of the handout.
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