The result of chemicals in certain foods reacting with sunlight to cause an aggrevated "sun-burn" like rash
Celery
Parsnip
Fennel
Lime
Carrot
Mustard
Parley
Dill
Grapefruit
Lemon
Fig
St. John's wort
Phytophotodermatitis
Febrile
Bullosis diabeticorum
Diffuse distribution
Tinea corporis
Varicella
Herpetic whitlow
Smallpox