Is skin allergy contagious?

Written by Zhu Zhu

Dermatology

Updated on September 19, 2024

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Skin allergies are not contagious. When skin allergies occur, it is essential to identify the allergen and determine the cause. Skin allergies often manifest as dermatitis, eczema, urticaria, and other allergic diseases, and can also present as diseases such as angioneurotic edema. Common symptoms include itching, papules, swelling, and rash patches, but there is no need to worry too much as they are not contagious.

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Written by Zhu Zhu

Dermatology

29sec

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Skin allergy symptoms

Skin allergies are a disease caused by the skin coming into contact with an allergen, leading to symptoms such as swelling, burning itch, peeling, hives, or rashes. These symptoms greatly affect the patient's life, and timely treatment is necessary once they appear. Allergy-relief ointments can be used, and it is important to keep the skin clean and dry regularly and avoid eating spicy and irritating foods.

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Written by Huang Ling Juan

Dermatology

50sec

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Can people with skin allergies eat grapes?

People with skin allergies can generally eat grapes. If there is no allergic reaction to the components of grapes, eating them during an allergy period will not worsen the condition. Skin allergies are often closely related to diet. Consuming foods that commonly cause allergies, such as milk, eggs, seafood, fish, shrimp, and crab, can trigger allergic reactions in the body. People who are prone to allergies may also react to airborne dust, pollen, and animal fur. When experiencing skin allergies, it is important to use antihistamine medication under a doctor’s guidance and identify the cause to avoid contact and prevent recurrence. It's also advisable to avoid spicy and irritating foods when suffering from skin allergies.

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Written by Zhu Zhu

Dermatology

27sec

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What can you eat with skin allergies?

Skin allergies are caused by exposure to allergens. If skin allergies occur, it is best to check for allergens to see which foods or substances you are allergic to. Foods that do not cause allergic reactions upon testing or after consumption can be eaten. However, foods such as fish, shrimp, beef, lamb, seafood, eggs, and milk are more likely to cause allergies and should be avoided as much as possible.

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Written by Liu Gang

Dermatology

50sec

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What is seasonal skin allergy?

Seasonal skin allergies are allergic reactions of the skin triggered by allergens that occur during specific seasons. For example, in spring, pollen allergies might lead to dermatitis, eczema, or urticaria; in summer, the intense ultraviolet rays can cause solar dermatitis, and in the cold weather of autumn and winter, cold urticaria or allergic dermatitis might occur. These conditions only appear during specific seasons and generally ease off or disappear after the season ends without the need for treatment. These are characteristics of seasonal skin allergies. In such cases, it is advisable to regularly exercise to boost the immune system to fight against allergens, avoid spicy and irritating foods, and refrain from staying up late.

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Written by Qu Jing

Dermatology

1min 27sec

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What should I do if I have skin allergies and itching?

Skin allergies and itching require actively searching for the triggering factors, i.e., allergens. Identifying what has irritated the skin and caused the allergic reaction is crucial, then avoiding further contact to prevent recurrence or worsening of the condition. If the allergy is triggered by consuming fish, shrimp, seafood, tropical fruits, etc., it is important to avoid eating similar foods in the future. If the use of certain cosmetics or skin care products causes allergies, avoid using other products containing the same ingredients. If the allergy is caused by certain medications, typically appearing within four days to a month of usage, it is advised to switch medications and avoid taking the same one again. For more severe allergic symptoms, such as significant itching, oral antihistamines like loratadine, desloratadine, cetirizine, and ebastine can be taken. Topical anti-itch medications like calamine lotion can be used, and for more severe conditions, topical corticosteroids or tacrolimus ointment can be applied. If symptoms do not improve or worsen with the aforementioned treatments, short-term oral steroids might be considered to manage the condition. (Note: Medication should be used under the guidance of a physician.)