Papular urticaria are small, less than 1 cm in diameter, urticarial lesions that usually appear on exposed surfaces in crops, and which are assumed to be secondary to insect bites.
They can be intensely pruritic, and excoriations are often evident. Chronic scratching can lead to lichenification or prurigo nodularis.
Papular urticaria may be more common in children.
- If lesions develop indoors, fleas are the most likely cause. Remove possible foci of infestation by treating pets, vacuuming carpets, etc.
- Sedating antihistamines such as hydroxyzine can be helpful.