Dermatographic urticaria, also known as artificial urticaria, is a skin reaction in which red or swollen marks appear at the site of friction or irritation. This symptom can appear suddenly, causing confusion and distress. This article will explore the possible causes of sudden onset of dermatographic urticaria.
Graphing urticaria may be related to an abnormal response of the immune system. When the body has an allergic reaction to certain substances, the immune system may mistakenly perceive normal skin friction as a threat, triggering an inflammatory response. In this case, patients may experience redness, swelling, or itching at the site of friction. Graphing urticaria can also be triggered by recent exposure to certain allergens, such as certain foods, medications, or environmental factors.
Another possibility is direct skin irritation. Dermatographic urticaria can also be caused by physical factors such as temperature changes, pressure, friction, or ultraviolet radiation. These physical factors directly irritate the skin, leading to an inflammatory response. For example, sweating after exercise or wearing tight clothing in hot weather can trigger dermatographic urticaria. If symptoms worsen and are accompanied by difficulty breathing or a swollen throat, a severe allergic reaction should be considered, and immediate medical attention is necessary.
Patients must know that the specific causes of dermatographic urticaria can vary from person to person, and the appearance of symptoms may be related to a variety of factors. When dermatographic urticaria occurs, one should not self-diagnose, but rather seek the help of a professional doctor for a comprehensive examination and evaluation to determine the exact cause and obtain appropriate treatment recommendations.
[Prevention Tips:]
1. Avoid contact with known allergens, such as certain foods, medications, or environmental factors.
2. Pay attention to personal hygiene, keep skin clean, and avoid physical irritation to the skin.
3. If symptoms appear, seek medical attention promptly to obtain accurate diagnosis and treatment advice.
