Urticaria, commonly known as hives are allergic reactions, which lead to the formation of raised welts or bumps on the skin. Such reactions are basically triggered by various factors like exposure to heat or excess cold, sunlight, stress or due to the application of any allergic chemicals over the skin.
Urticaria can be categorized into several types, based on the physical factor that triggers it and the signs and symptoms of different types of this skin disease, usually vary from each other. However, occurrence of reddish bumps on different parts of the body and continuous itching over the affected area are the two common Urticaria Symptoms, which is found in almost all types of reactions.
Cholirgenic Urticaria Symptoms
One of the most common categories of hives is known as ‘Cholinergic Urticaria’ or ‘chronic heat hives’. An individual with this particular type of urticaria generally shows no signs of the allergy, until and unless he or she is being exposed to heat. An indication that such allergic reactions are about to occur is when you start feeling uncomfortable in a warm environment.
Pruritus or sense of extreme itching over the scalp area, face and the upper part of the torso is another common sign for chronic heat hives. In some cases, the patient may also develop an irritating prickling sensation occurring randomly at different points on the body. Other major Cholinergic Urticaria Symptoms include burning sensation all over the body, redness of the skin, reduced levels of sweat formation and swelling.
Cold Urticaria Symptoms
Cold Urticaria is another type of hives and as the name suggests, it occurs due to the exposure to excessive cold environment. Well, urticaria basically happens, when an external stimulus triggers a special kind of skin cells called the ‘mast cells’ to release histamine, which in turn cause the capillaries to dilate.
Dilation of these tiny blood vessels allows the fluid substance inside it, to leak out and accumulate in the surrounding epidermis tissues. Thus, in this particular case of urticaria, the histamine reaction occurs in response to an external cold stimulus. It also results into skin swellings due to the deposition of fluid in the tissues, itching and burning sensation.
‘Hypotension’ (or abnormally fall in the blood pressure level) is one of the most severe Cold Urticaria Symptoms, which can be even life threatening in certain cases.
According to the health experts, it is very essential for one to accurately identify the various indications of urticaria. Urticaria Symptoms can be acute or chronic. In case of acute urticaria, the symptoms generally disappear within few weeks.
However, for a chronic urticaria, the patient may have to suffer for a significantly longer period. In certain cases, another critical condition called ‘angiodema’ can also occur. It is characterized by swelling of the lips, tongue, face and throat (which can further cause breathing difficulties). Such abnormal swellings are accompanied by severe pain.
In case you noticed any of these mentioned Urticaria Symptoms, it is recommended that you immediately consult a good physician or you are likely to develop certain severe complications in the latter phases. Also read this review about simple treatment, which can help you Get Rid of Urticaria(Hives) Fast.