Acute urticaria mainly manifests as red or pale wheals on the skin, accompanied by significant itching. Common causes include allergies, infections, or physical irritants. If the symptoms are mild, observation is sufficient; if they continue to worsen, medical attention should be sought promptly.
The specific symptoms and causes can be summarized as follows:
1. Typical symptoms: Red or light red wheals of varying sizes suddenly appear on the skin, with irregular shapes, usually accompanied by intense itching. They may subside within a few hours but are prone to recurrence.
2. Common triggers: allergic reactions to food (such as seafood, nuts), medications, pollen, etc.; viral or bacterial infections; physical factors such as cold or heat stimulation and friction; some are related to emotional stress.
3. Precautions: In a few severe cases, symptoms such as difficulty breathing and dizziness may occur, which may indicate a systemic allergic reaction and require immediate medical attention.
It is recommended to keep a record of your diet and contact with allergens during an attack to help identify the trigger; avoid scratching, and use cold compresses to relieve itching; wear loose cotton clothing to reduce friction. If the attack is recurrent or accompanied by other discomfort, please consult a dermatologist for examination.
