Red spots all over the body

There are several possible causes of systemic red spots, which require timely symptomatic treatment.1. It may be an allergic disease, such as eczema, urticaria or allergic dermatitis, which may cause systemic red spots and itching symptoms. 2. It may be an infectious disease, such as viral infection, rubella and other diseases. 3, may be showing syphilis or other reactive diseases, but also can not completely rule out tumors and other diseases. So after showing symptoms, it is recommended to go to the hospital in time for differential diagnosis.