Microsoft word - urticaria.docx
Hives (medically known as urticaria
) are red, itchy, raised areas of skin that
appear in varying shapes and sizes. They range in size from a few millimeters to
several inches in diameter. Hives can be round, or they can form rings or large
patches. Wheals (welts), red lesions with a red "flare" at the borders, are another
manifestation of hives. Hives can occur anywhere on the body, such as the trunk,
are frequently caused by allergic reactions; however, there are many non-
allergic causes. For example, most cases of hives lasting less than six weeks
(acute urticaria) are the result of an allergic trigger. Chronic urticaria (hives lasting
longer than six weeks) are rarely due to an allergy. The majority of patients with
chronic hives have an unknown cause. Perhaps as many as 30-40% of patients
with chronic idiopathic urticaria will, in fact, have an autoimmune cause. Acute
viral infection is another common cause of acute urticaria (viral exanthem). Less
common causes of hives include friction, pressure, temperature extremes,
exercise, and sunlight. It may be true that hives are more common in those with
One hallmark of hives is their tendency to change size rapidly and to move around,
disappearing in one place and reappearing in other places, often in a matter of
hours. Individual hives usually last two to 24 hours.
Types of Urticaria
It usually show up a few minutes after contact with the allergen and can last a few
hours to several weeks. Food allergic reactions often fit in this category. The most
common food allergies in adults are shellfish and nuts. The most common food
allergies in children are shellfish, nuts, peanuts, eggs, wheat, and soy. It is
uncommon for patients to have more than 2 true food allergies. A less common
cause is exposure to certain bacteria, such as streptococcus or possibly
Helicobacter pylori. In these cases, the hives may be exacerbated by other factors.
It refers to hives that persists for 6 weeks or more. There are no visual differences
between acute and chronic urticaria. Some of the more severe chronic cases have
lasted more than 20 years. A survey indicated that chronic urticaria lasted a year
or more in more than 50% of sufferers and 20 years or more in 20% of them. Of
course this does mean that in almost half the people it clears up within a year and
in 80% it clears up within 20 years or less.
It has been known to result in severe cardiorespiratory failure. The anti-diabetic
sulphonylurea glimepiride (trade name Amaryl), in particular, has been
documented to induce allergic reactions manifesting as urticaria. Other cases
include dextroamphetamine, aspirin, penicillin, clotrimazole, sulfonamides and
They are often categorized into the following:
• Aquagenic: Reaction to water (exceedingly rare)
• Cholinergic: Reaction to body heat, such as when exercising or after a hot
• Cold (Chronic cold urticaria): Reaction to cold, such as ice, cold air or water -
• Delayed Pressure: Reaction to standing for long periods, bra-straps, elastic
• Dermatographic: Reaction when skin is scratched (very common)
• Heat: Reaction to hot food or objects (rare)
• Solar: Reaction to direct sunlight (rare, though more common in those with fair
• Vibration: Reaction to vibration (rare)
• Adrenergic: Reaction to adrenaline / noradrenaline (extremely rare)
Causes of Urticaria
• Exposure to extremes of heat and cold, sun.
• Fish, prawns, eggs, strawberry, masroom.
• Mucous membranes of lips, mouth, pharynx, larynx.
SYMPTOMS of Urticaria
• Erythema well defined, fades on pressure.
• Subside within few hours without leaving any trace.
• Wheals develop along line of scratching or pressure.
• Common sites involved: eyelids, tongue, lips, glottis, genitalia, trunk, hands,
GENERAL MANAGEMENT of URTICARIA
• Identify and eliminate offending agent.
There is wonderful treatment for acute and chronic Urticaria in Homoeopathy. Thousands of patients are being treated with homoeopathic medicines at Homoeo Healing Center.
You precious feedback is awaited at [email protected]
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