Sunburn vs. Solar Urticaria
Similarities:
- Both conditions are triggered by UV radiation from sunlight.
- They cause immediate symptoms after exposure to the sun.
- Both require sun avoidance and sunscreen as primary preventive measures.
Differences:
- Sunburn is caused by direct damage to skin cells from UVB rays, leading to redness, inflammation, and sometimes blisters. It appears after prolonged exposure.
- Solar Urticaria is a rare allergic reaction to UV rays that causes hives and itching within minutes of sun exposure.
- Sunburn typically lasts longer and involves peeling, while solar urticaria subsides more quickly once out of the sun.