Although Xeroderma pigmentosum is listed as "a genetic disorder in which there is a decreased ability to repair DNA damage such as that caused by ultraviolet (UV) light", this set of Rife frequencies can also be used for over exposure to UV light,
Xeroderma Pigmentosum 80 7500 (sq 1285 4000 6516 9650 1750-5 6536-9 7598-3 9237) Hz
and for skin dryness afterwards,
Xeroderma 180 650 800 (sq 3352 7250 2709-6 3218 5056-7 7152-8) Hz
Anyone who has lived under the fluorescent lamp and developed eyesight problems should listen to frequencies for Xeroderma Pigmentosum.
Good luck.