Adult Still’s disease is a disease of the autoimmune system, equivalent to a common problem in rheumatology, and is not contagious in any way. Although a rash may appear during the disease, it is not contagious, so families or patients should not be particularly concerned. The typical symptoms of adult Steele’s disease are usually high fever, characterized by flaccid fever, and a rash, often on the trunk and extremities. The rash may appear or recede as the body temperature rises, and may be accompanied by joint symptoms, including arthralgia, enlarged lymph nodes, enlarged liver and spleen, sore throat, pleurisy, and pericarditis, etc. As long as regular treatment is adhered to, symptoms will gradually resolve. Steele’s disease originally refers to juvenile chronic arthritis with a systemic onset, but a similar disease occurs in adults, hence the name adult Steele’s disease.”