Blisters after allergy can be treated symptomatically with medication and actively search for the cause of the disease and treat the cause.
1. Symptomatic
Allergy-induced skin blisters should avoid scratching to prevent blisters from breaking and secondary infection. If the blister breaks, 3% boric acid solution can be used to protect the wound. If infection has occurred, you can apply mupirocin and other drugs to fight infection.
2. Causes: There are many kinds of allergies, such as food allergy, contact dermatitis, solar urticaria and so on are all allergies, which can be accompanied by blisters.
(1) Food allergy: patients eat allergenic food, such as seafood, mango and so on, causing food allergy, triggering skin blisters. Patients should immediately stop eating the food, and if the itching is more serious, antihistamines such as loratadine can be used to relieve it.
(2) Contact dermatitis: contact dermatitis is triggered by skin contact with irritants such as paints, hair dyes, insecticides, etc. In severe cases, glucocorticoids can be used. In severe cases, glucocorticoids can be used for anti-inflammatory treatment, commonly used drugs such as dexamethasone.
(3) Solar urticaria: patients’ skin blisters, wind bumps, itching, etc. appear after exposure to ultraviolet light or visible light. Patients should do a good job of sunscreen, avoid direct exposure of the skin to sunlight. Antihistamine drugs such as loratadine and cetirizine can be used.
Blistering after allergy is recommended to go to the hospital for treatment and stay away from allergens. If the allergens are not clear, allergen testing can be done to prevent allergies in the future.