Frequent hives after vaccination may be due to allergy to certain components of the vaccine or exposure to other allergens.
1. Allergy to certain components of vaccines: vaccines contain some biomolecules, especially some proteins, which are common allergens and may trigger an allergic reaction and cause urticaria. The manifestation of hives is like a windy, wandering rash, accompanied by itching, and if it lasts for more than six weeks, it is called chronic urticaria.
2. Exposure to other allergens: The patient may have been unconsciously exposed to allergens after vaccination. Allergens are very diverse and widely distributed. They are found in food, medicine, air and environment. For example, mites, which are present on our bed sheets and duvet covers, can cause frequent hives if they are not washed carefully and are repeatedly exposed.
Frequent hives after vaccination, there are other reasons, it is recommended to go to the hospital in a timely manner, to clarify the cause of the disease, scientific treatment.
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