photoerythema

pho·to·er·y·the·ma

(fō'tō-er'i-thē'mă),
Erythema caused by exposure to light.
[photo- + G. erythēma, flush]

photoerythema

(fō″tō-ĕr″ĭ-thē′mă) [″ + erythema, redness]
Reddening of the skin caused by light.