RHD diagnostic criteria include
Erythema marginatum is a cutaneous finding associated with acute rheumatic fever. The lesions typically develop 7 days to months after the onset of the streptococcal pharyngitis or, rarely, streptococcal skin infections. Erythema marginatum occurs in about 10% cases of acute rheumatic fever. Jones criteria is used for diagnosis of rheumatic fever . Its shown in the following picture Ref Davidson edition23rd pg 532
Oral ulcer
Malar rash
Erythema marginatum
Nail telengectasia
C.V.S