In: Biology
As their is no specific rare disease given in the question. I am giving the details of one the rare skin conditions.
Actinic Prurigo it is a disease which is cause by the sunlight and also termed as the induced sunlight eruption. This condition is also characterized by the abnormal responses to UV radiation i.e. photosensitivity. It has been believed that Acttinic Prurigo is an abnormal immune response in the background of genetic sensitivity. This skin condition is not associated with mortality but it can cause morbidity in stricken individuals.
Mainly, AP in the beginining appears in the sunnier months and patients frequently report aggravation during summer and spring. Rarely, however, it gets worse in the winters and autumn may be because of the reason of immunotolerance in summers.
Factors effecting Actinic Prurigo:-
Preventive measures to control Actinic Prurigo:-