1. Photosensitisation is a skin condition characterized by an abnormal sensitivity to sunlight.

光敏感作用是一种皮肤病，其特征是对阳光异常敏感。

2. Some medications can cause photosensitisation, leading to increased risk of sunburn.

某些药物可能会引起光敏感作用，增加晒伤的风险。