hives


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hives

(urticaria), rash consisting of blotches or localized swellings (wheals) of the skin, caused by an allergic reaction (see allergyallergy,
hypersensitive reaction of the body tissues of certain individuals to certain substances that, in similar amounts and circumstances, are innocuous to other persons. Allergens, or allergy-causing substances, can be airborne substances (e.g.
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). The swelling is caused by distention of the skin capillaries and escape of serum and white cells into the skin and tissues. Hives are usually extremely itchy, and they may occur in a small area or cover virtually the entire body. The allergic reaction is commonly to a food or a drug, although injections of serum, insect bites, inhalants (pollen), and physical factors (cold, light, heat) may also be causative. Usually crops of hives come and go, remaining at one site for several hours and then reappearing at another; commonly an acute attack subsides spontaneously in a week or two. However, chronic cases of hives may last for long periods of time. Antihistamines and cortisone are considered helpful in relieving the itching and reducing the swelling.

hives

[hīvz]
(medicine)
References in periodicals archive ?
If the hives are near a sturdy shelter, for instance near a barn or house, you could move the hive and put the backside of the hive against the structure.
Beekeepers discovered a scene of devastation when they went to check on the hives in woods close to Hopwood Hall College in Middleton.
For some hives, on some days, just opening up the lid will be too intrusive.
I've had some support from other beekeepers, some of whom have had their own hives stolen in the past.
If you find any bee hive at your property does not touch it, instead immediately call Killer bee hive removal Palm Desert CA, they have the expertise to remove bee hives from your property.
Based on the performances of colonies, box hives with seven standard frames were found to be the optimum for the race in the region.
She said: "Bee hives are limited in their space, but as the roof is so big, there wasn't really a limit this time, which is why it has grown.
On August 1, teams from the Lancashire-based Tree Bee Society made the trip to remove a large hive of around 60-70,000 bees from the roof of the elderly care assessment unit.
The insects died when a hive set up to educate young people was burned at Oxford Island near Craigavon, Co Armagh, last week.
This is typically when you spot "wild" hives nestled in trees.
Sony Professional Solutions Americas Media Backbone Hive is an omni-media network production system, the successor to its well-known SONAPS news production system.