Dermatographism

Dermatographism (also known as Dermatographic Urticaria or Skin Writing) is a type of allergic reaction that appears on the skin. It is characterized by the skin becoming raised and inflamed when scratched, rubbed, or even when pressure is applied. The condition is not life-threatening but can cause discomfort and embarrassment due to its appearance.

Causes

The exact cause of dermatographism is unknown. However, it is believed to be related to the immune system's response to physical stimuli. Some potential triggers include:

• Pressure or friction on the skin
• Heat or cold
• Infections
• Allergic reactions
• Emotional stress

Symptoms

The primary symptom of dermatographism is the appearance of red, raised welts or hives on the skin after it has been scratched or rubbed. These welts can last for several minutes to several hours. Other symptoms may include:

• Itching
• Burning sensation
• Swelling

Diagnosis

Dermatographism is typically diagnosed through a physical examination. A doctor may use a blunt object to lightly scratch the skin and observe the reaction. If welts appear within a few minutes, a diagnosis of dermatographism can be made.

Treatment

While there is no cure for dermatographism, the symptoms can be managed with antihistamines and avoiding triggers. In severe cases, a doctor may prescribe stronger medications.

See Also

• Urticaria
• Allergic reaction
• Skin conditions

Dermatographism Resources
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