I have a rash on his neck and discoloration on the arms. Tips of trigger?

lupus rash on neck rash question Superchem : I have a rash on his neck and discoloration on the arms. Ideas of cause? Color on the arms is red and round. often a small irritating. The rash is scaly and itchy throat and red. they are various. anything on the World wide web, and my doctor has diagnosed 3 different conditions. none had been truly clear. He mentioned dermal contact. and eczema and psoriasis, but my mother she is these days. none of whom is contagious, if everyone has any answers

Itching Urticarial Rash