Why does papular urticaria occur?
The exact cause of papular urticaria is not yet fully understood, but it may be related to constitutional factors or dietary factors. In addition, certain underlying diseases may also trigger the development of papular urticaria.
1. Constitutional Factors
Individuals with an allergic constitution may develop papular urticaria when bitten by insects such as mosquitoes or bedbugs. The insect saliva injected into the skin can provoke an allergic reaction, leading to the occurrence of papular urticaria.
2. Dietary Factors
Consuming foods that commonly cause allergies—such as fish, shrimp, and crab—may trigger an allergic response in the body, resulting in the aforementioned symptoms.
3. Disease-Related Factors
Papular urticaria may also be induced or exacerbated by certain medical conditions, including dental inflammation, enteritis, diabetes, respiratory tract infections, or thyroid disorders.
Patients with papular urticaria can take antihistamine medications under a doctor's guidance to reduce inflammation and relieve itching. Commonly used drugs include loratadine tablets and cetirizine hydrochloride tablets. Additionally, improving living conditions and avoiding insect bites are important preventive measures.