Linked from
The 10 pages that link to Photosensitivity, each with the reason it gives.
AromatherapyRelated: Some citrus oils can increase skin sensitivity to ultraviolet light.
PellagraRelated: Pellagra’s dermatitis often worsens on sun-exposed skin.
Cockayne syndromeRelated: Light sensitivity is a characteristic feature of Cockayne syndrome.
Darier diseaseRelated: Sun exposure can aggravate lesions in some people with Darier disease.