This presentation can be seen with many diseases. This is limited information to make precise recommendations. The best option is to consult a Dermatologist to understand the condition. A thorough evaluation if necessary should be done. The condition described by you is photosensitivity and can be seen in many skin conditions, so meet a Dermatologist.
Health Tips
Remember to mention if you have any hair loss, joint pains or oral ulcers to the dermatologist as it may indicate something serious.