Can papular urticaria heal itself?

Written by Qu Jing
Dermatology
Updated on May 19, 2025
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Papular urticaria, also known as insect bite dermatitis, is an allergic skin disease caused by an allergic reaction to bites from mosquitoes, mites, worms, and even lice, fleas, ants, etc. It often occurs on exposed parts of the skin and in individuals with sensitive skin. Generally, papular urticaria can heal on its own. If left untreated, without further exposure to the irritant, and with a light diet and proper rest, it can subside within about a week. However, if there are many rashes, accompanied by erythema, vesicles, severe itching, or even secondary infections, and if the individual has a history of severe allergic reactions, it is advisable to seek timely medical attention at a standard hospital. Under the guidance of a doctor, use calamine lotion to relieve itching, or apply topical corticosteroid ointment and take antihistamines and traditional Chinese medicine orally. Additionally, at home, it is important to maintain cleanliness of clothes, mats, quilts, and plush items, and to sun them often to avoid further insect bites. (The use of medications should be under the guidance of a physician.)

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Written by Liu Gang
Dermatology
49sec home-news-image

Does papular urticaria spread?

Papular urticaria is a type of allergic disease, mostly related to exposure to irritants, or bites from mosquitoes and fleas. This disease is not contagious, and it cannot be transmitted through contact with others. Once the disease is discovered, it must be treated with proper anti-allergy medications. Additionally, it's important to frequently sun-dry and disinfect personal items such as bed sheets, duvet covers, and clothes. Avoid keeping small animals at home and try to stay away from areas with lots of plants and trees. Some cases of papular urticaria may develop small blisters. These blisters should not be punctured as breaking them can lead to infections and potentially more severe symptoms. Generally, with proper treatment, the symptoms can gradually subside, usually within about a week.

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Written by Liu Jing
Dermatology
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Can urticaria papulosa be washed with hot water during bathing?

The so-called papular urticaria is an allergic reaction associated with insect bites. It is advised not to wash the affected area with hot water; instead, bathing with lukewarm water is acceptable. Key preventive measures include managing the environment to avoid further insect bites and administering anti-allergy and anti-itch treatments. Oral medications such as loratadine syrup, prednisone acetate tablets, and vitamin C tablets are recommended. At the site of the skin lesions, topical medications such as fluticasone propionate, triamcinolone acetonide econazole cream, desonide cream, or antipruritic moisturizing cream can be used. If secondary symptoms such as ulceration and blister formation occur, it is necessary to enhance the cleanliness of the rash to prevent secondary bacterial infections by applying saline solution, Kangfuxin solution, or Phellodendron solution on the eroded areas. (Medication should be used under the guidance of a physician.)

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Written by Liu Gang
Dermatology
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How long does papular urticaria heal by itself?

Papular urticaria is a type of allergic reaction, mostly related to contact with irritants or bites from mosquitoes, fleas, and similar insects. Typically, it causes red wheals to appear on localized areas of the body, often topped with a small secondary lesion or blister. Most cases involve itching. Generally, papular urticaria can resolve on its own within about a week without treatment. However, if the symptoms are severe, and the blisters are large, scratching them open can lead to infection, which will prevent natural healing. It is best to treat papular urticaria as soon as it appears using antiallergic medications either topically or orally, which usually lead to a quick recovery. After recovery, it is crucial to maintain a proper diet and lifestyle habits, avoid keeping small pets at home, stay away from areas with dense vegetation, and ensure bedsheets and covers are sun-dried to sterilize and kill germs.

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Written by Liu Gang
Dermatology
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How long will papular urticaria take to heal?

Papular urticaria is a type of contact allergic reaction, related to contact with irritants or bites from mosquitoes and fleas. Generally, this disease can gradually subside on its own within about a week to ten days without treatment. However, some patients experience severe itching after infection, and scratching may lead to the formation of small blisters and secondary infections in the affected area. Therefore, once infected with this disease, it is essential to undergo standardized treatment. Treatment may include oral and topical anti-allergy medications, which typically can cure the condition within about a week. After recovery, it is also important to prevent recurrence by avoiding areas with many mosquitoes, not keeping small animals at home, frequently sunning and disinfecting clothes, bed sheets, and duvet covers, and bathing regularly.

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Written by Liu Gang
Dermatology
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What causes papular urticaria?

Papular urticaria is a type of allergic reaction, often related to direct contact with irritants, or bites from mosquitoes, fleas, and other insects. It also relates to an individual's physical constitution; some people are more sensitive and may develop erythema or blisters in response to minor external irritants. This condition is also linked to one's home environment, such as frequently keeping pets or not regularly sunning beddings, which might harbor mold and mites. Once the condition occurs, it is advisable to regularly disinfect and sun-expose bedding, avoid contact with small animals, and stay away from parks or areas with dense vegetation. Topical application of anti-allergic medications can treat the condition. (Note: The doctor's answer is for reference only. Medications should be taken under the guidance of a professional physician, and self-medication should be avoided.)