Solar Urticaria
Definition: A rare form of sun allergy, solar urticaria causes hives or red welts to appear on the skin when exposed to sunlight.
Cause: The skin reacts to UV light, resulting in histamine release, which triggers an allergic reaction.
Types:
- Immediate Reaction: Symptoms like itching and welts appear within minutes of sun exposure.
- Delayed Reaction: Hives and irritation occur a few hours after sun exposure.
Protection Before the Cause: - Use high-SPF sunscreen designed for sensitive skin.
- Avoid direct sunlight by wearing long-sleeved clothes and hats.
- Consider taking antihistamines before going out in the sun.
Cure After the Cause: - Apply cool compresses and anti-itch creams to reduce irritation.
- Seek medical advice if symptoms persist, and consider prescription medications.
Conclusion: Solar urticaria can affect daily activities, but careful sun protection and proper treatment help manage symptoms.