Rheumatic fever generally is not contagious. Because the onset of rheumatism is somewhat related to infection by Group A beta-hemolytic streptococcus, and it is not a contagious disease, it does not spread. Common clinical manifestations of rheumatic fever include fever, erythema marginatum, subcutaneous nodules, joint pain, chorea, and carditis. During the acute phase of rheumatism, it is recommended to rest in bed and avoid overexertion. In terms of medical treatment, because it is related to streptococcal infection, penicillin antibiotics are generally recommended. If there is concurrent carditis, corticosteroids should be used in combination to improve the condition.