Is artificial urticaria contagious?

Written by Liu Gang
Dermatology
Updated on September 02, 2024
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Artificial urticaria is a disease caused by allergies, and it is one of the more difficult types of urticaria to treat. This disease is not contagious and will not spread through contact with others. Once diagnosed with this disease, formal treatment is necessary, and one can visit the dermatology department of a standard hospital for oral antiallergic medication treatment. If the condition persists for a long time and the treatment effects are unsatisfactory, it might be helpful to check for allergens to ascertain what triggers the allergy. Common allergens often include diet, living environment, dust mites, or pollen. Therefore, during and after treatment, it is advisable to enhance physical exercise to boost immunity, avoid keeping pets, stay away from places with dense vegetation, and refrain from consuming spicy and stimulating foods.

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Written by Zeng Hai Jiang
Pediatrics
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Do children with urticaria feel itchy?

Children's urticaria generally causes itching. It occurs when children come into contact with foods, medications, or other allergenic substances, leading to scattered or widespread red rashes. The rash may appear as wheals or might be maculopapular or urticarial in nature, generally accompanied by rashes and itching. If a child develops urticaria, topical medications can be applied, providing relief from itching and allergic reactions.

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Written by Huang Ling Juan
Dermatology
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How is urticaria caused?

There are many causes of hives, and the most common is related to genetics. If one of the parents has an allergic constitution, then the likelihood of allergies in their offspring significantly increases. Environmental factors also play a role in the occurrence of hives. For example, environments with a lot of dust or dust mites can trigger allergic reactions. Additionally, a humid living environment can promote the growth of fungi, which can also cause hives. The occurrence of hives is also related to food. Individuals who are allergic to proteins might experience hives when consuming high-protein foods like fish, shrimp, crabs, milk, and eggs. Furthermore, viral infections, bacterial infections, and parasite infections can also trigger hives.

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Written by Liu Gang
Dermatology
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Characteristics of papular urticaria

Papular urticaria is a type of allergic reaction, generally associated with contact with irritants, or bites from mosquitoes and fleas. The likelihood of occurrence increases if small animals are kept at home. Typically, small red papules or red wheals appear on localized areas of the body or extensively, with a transparent blister on top. The itching is quite severe, and the blisters are prone to bursting when scratched. Once symptoms appear, it is crucial to treat them with proper medication, and care should be taken to prevent infection if the blisters are scratched open. To prevent recurrence, it is advisable not to keep small animals at home, to frequently disinfect clothes, sheets, and duvet covers by exposing them to sunlight to eliminate mites or fleas, and to maintain a standard diet and lifestyle habits.

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Written by Zhu Zhu
Dermatology
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Is urticaria contagious?

Urticaria is not contagious. Urticaria is often associated with multiple factors such as infections, food and drug allergies, insect bites, and also related to genetics, climate, and environment. If urticaria occurs, it is advisable to promptly identify the allergen and avoid further contact with it to prevent the occurrence of urticaria. Urticaria is not infectious, but it is curable and recurrent.

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Written by Li Ya Ping
Dermatology Department
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Can urticaria be contagious?

Urticaria is not contagious. Urticaria, also known as wheals or commonly referred to as hives, is caused by temporary increased vascular permeability in the skin and mucous membranes due to allergic factors, resulting in localized edema. Wheals generally subside quite quickly, typically within 24 hours. The causes of wheals, which are essentially urticaria, may include the food we eat, airborne inhalants, and skin contact with substances such as pollen, dust mites, mold mites, as well as animal dander, fur, etc. Additionally, some cases may be related to infections, and some people may have a lethal factor due to suspicious medications. Moreover, the occurrence of urticaria can also be related to other factors such as cold, heat, ultraviolet light, and mechanical stresses such as friction or pressure. Furthermore, other factors including psychological and endocrine factors can also lead to the occurrence of urticaria.