A sudden onset of hives is usually related to factors such as allergic reactions, infections, physical irritants, or psychological stress. It is recommended to observe the symptoms first, avoid scratching, and promptly investigate possible causes.
Specifically, common triggers can be categorized as follows:
1. Food or drug allergies: For example, seafood, nuts, certain medications, etc., may trigger allergic reactions in the body, leading to hives and itching on the skin.
2. Infectious factors: Viral or bacterial infections such as colds and pharyngitis can sometimes be accompanied by urticaria symptoms.
3. Physical stimulation: Direct stimulation of the skin, such as cold or heat, sunlight, friction or pressure, may also induce it.
4. Mental and lifestyle factors: Stress, anxiety, fatigue, or lack of sleep can increase bodily sensitivity and become one of the triggers.
If symptoms are mild and transient, avoid suspected allergens and keep your skin clean and cool. If hives recur, spread, or are accompanied by difficulty breathing, dizziness, or other discomfort, seek medical attention promptly for a proper diagnosis and treatment.
