Urticaria, also called hives, are skin allergies which are distinguished by redness and itchy bumps that could be seen on the lips, tongue, skin and ears. The hives' size, shape and position have the tendency to change from one certain portion of the body to another. Hives appear to be pale in color and is a reaction triggered when the body counter allergens. This simply means that it may appear at no particular date and time. It is known to appear and disappear in several times of the day. It has the tendency to come out in the morning and be vanished by afternoon, and then re-appears during night time.
There are 3 types of hives that are depending upon how long they last:
1. Acute - This specific type only appears for a very short time. It is the most typical type though, and can last for a day up to a week. This skin reaction could be brought on by cold virus infections, pain killers, muscle relaxants, insect stings and food allergies. Usually, it seems like 30 minutes after eating the food.
2. Chronic - This typically lasts for 1 and a half month up to a year. The main cause of this type of hives is undiscovered and is proven to appear and vanish frequently, hence disrupting normal daily routine.
3. Physical - This appears as a reaction to stimulation by other factors just like the sun, heat and cold against the skin. Even holding on to something for too long might result in hives in this instance.
Causes As plasma in the blood seeps out through small vessels of the skin, this type of skin reaction appears. Additionally, it is a response to histamine, which is a chemical secreted by the mast cells which are near the blood vessels of the skin. Hives are then brought out when the fluid leaks on the skin surface. Histamine is the main reason for the occurrence of swelling, itching and redness; the characteristics of hives.
Allergies Hives is recognized as an outcome of allergic reactions in usual cases. This consists of bee stings, sunlight exposure, food and medication. It also prompts histamine release that usually reacts with the skin.
Though there are no known causes of hives, it appears in 3 determined factors:
(a) Idiopathic This means that the appearance of hives has no known cause. They only appear of nowhere and abruptly disappear.
(b) Immunological Immune system variations may also trigger hives. This mostly comes about when cells in the immune system trigger the release of histamine from the mast cells and one comes in to contact with it.
(c) Non-immunological This type comes out when foreign compounds induce histamine secretion without proven connection to the immune system. By the time a person gets close with these substances, hives may show up.
It is advisable to steer away from the triggers that may most likely result to hives, for example, things that may cause allergic reactions.
There are 3 types of hives that are depending upon how long they last:
1. Acute - This specific type only appears for a very short time. It is the most typical type though, and can last for a day up to a week. This skin reaction could be brought on by cold virus infections, pain killers, muscle relaxants, insect stings and food allergies. Usually, it seems like 30 minutes after eating the food.
2. Chronic - This typically lasts for 1 and a half month up to a year. The main cause of this type of hives is undiscovered and is proven to appear and vanish frequently, hence disrupting normal daily routine.
3. Physical - This appears as a reaction to stimulation by other factors just like the sun, heat and cold against the skin. Even holding on to something for too long might result in hives in this instance.
Causes As plasma in the blood seeps out through small vessels of the skin, this type of skin reaction appears. Additionally, it is a response to histamine, which is a chemical secreted by the mast cells which are near the blood vessels of the skin. Hives are then brought out when the fluid leaks on the skin surface. Histamine is the main reason for the occurrence of swelling, itching and redness; the characteristics of hives.
Allergies Hives is recognized as an outcome of allergic reactions in usual cases. This consists of bee stings, sunlight exposure, food and medication. It also prompts histamine release that usually reacts with the skin.
Though there are no known causes of hives, it appears in 3 determined factors:
(a) Idiopathic This means that the appearance of hives has no known cause. They only appear of nowhere and abruptly disappear.
(b) Immunological Immune system variations may also trigger hives. This mostly comes about when cells in the immune system trigger the release of histamine from the mast cells and one comes in to contact with it.
(c) Non-immunological This type comes out when foreign compounds induce histamine secretion without proven connection to the immune system. By the time a person gets close with these substances, hives may show up.
It is advisable to steer away from the triggers that may most likely result to hives, for example, things that may cause allergic reactions.
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