Sunburn is an acute inflammatory reaction that occurs locally when the skin, due to poor tolerance to sunlight, is exposed to intense sunlight for an extended period. The causative light for this condition is medium-wave ultraviolet radiation (wavelength 290-320 nm). It primarily occurs in summer and is more common among outdoor workers and travelers, especially those with fair skin.

bubble_chart Diagnosis

Clinical Manifestations 1. Onset after sun exposure; 2. The primary lesion is large patches of erythema with clear boundaries on sun-exposed areas. Severe cases may develop blisters or bullae; 3. Burning pain or stabbing pain is present; 4. Commonly occurs on exposed areas such as the face, neck, shoulders, and limbs.

Diagnostic Criteria 1. A clear history of sun exposure; 2. Well-defined erythema, or even blisters or bullae, limited to sun-exposed areas; 3. Burning sensation or stabbing pain.

bubble_chart Treatment Measures

Treatment principles: 1. Topical application of anti-inflammatory and astringent agents, such as calamine lotion or 3% boric acid solution; 2. Short-term use of low-dose corticosteroids may be considered for severe cases.

bubble_chart Cure Criteria

1. Cure: Skin lesions and inflammation subside, symptoms disappear, with possible temporary peeling and pigmentation; 2. Improvement: 3. No recovery: