|
Contact hives should be distinguished from other
allergic contact dermatitis where dermatitis reactions develop for a
long time after coming in contact with certain offending stimuli.
As apparent by the name contact hives, an instant but
momentary localized swelling and redness occurs on the skin after
direct contact with certain offending stimuli. Reports of
contact hives caused by a variety of compounds, such as foods,
preservatives, fragrances, plant and animal products, and metals,
continue to be reported. Symptoms are similar to other types of
physical hives, i.e.
hives and stress.
In different cases of contact hives, the
contact can be immunologic and nonimmunologic. Causes of nonimmunologic
contact
hives include balsam of Peru, benzoic acid, cinnamic alcohol, cinnamic
aldehyde, sorbic acid, and dimethylsulfoxide. Causes of immunologic
contact hives include natural rubber latex, raw meat and fish, semen,
many antibiotics, some metals (e.g. platinum, nickel), acrylic
monomers, short-chain alcohols, benzoic and other miscellaneous
chemicals.
Since the exposure to the contact hives patient
is
usually similar to other contact stimulus, watchfulness is
required to make certain that the patient is properly investigated and
diagnosed as contact hives in the setting of hand eczema may be ignored.
The most common characteristics of contact hives are
itching, local burning sensation, and tingling. Red swellings or wheals
may
also occur, especially on the hands. The color of the wheals shows the
severity, which can range from slight redness or spots with minimal
swelling to fiery redness with tense swelling and wheals. Rash caused
by contact hives usually resolves by itself within 24 hours of onset.
The worst thing about contact hives is that
symptoms may occur in organs other than the skin due to unknown
triggers. They are more likely to occur in patients with immunological
contact hives. Symptoms of extracutaneous reactions that can be caused
by contact hives include wheezing, runny nose, watery eyes, lip
swelling, hoarse throat, difficulty swallowing, nausea, vomiting,
diarrhea, cramps, and severe anaphylactic shock, which can be
life threatening.
Contact Dermatitis Hives
Contact dermatitis hives is a
rare skin allergy
condition that occurs when an offending stimulus (certain external
substance) comes in contact with the skin. Clear symptoms of allergy usually appear within 30
minutes after the exposure. Once the
person
prone to contact hives comes in contact with this stimulus, which is
normally quite harmless for most people, inflammation occurs.
P.S. (from
Dr. Gary M. Levin, M.D. & Surgeon)
I know what you may feel and think - "I am lost! I don't have any chance to
get cured etc" - I have heard this numerous times and I must tell you this: I
have seen TONS of urticaria & angioedema sufferers get cured at my private
clinic and online using my simple method. I KNOW what I am talking about. Do
yourself a favor and check it out:
Click here to see now!
|
