Hi, Welcome to HealthcareMagic Forum.
What other symptoms does she have? What you are noticing are Petechiae
which are small, round, pinpoint-sized hemorrhages of small capillaries in the skin. It can happen if there is any autoimmune disease
, Drug allergy
, Blood coagulation anomalies, local injury or trauma which i suppose she does not have or it can be due to viral infections. Get her thoroughly evaluated by a Pediatrician
and the goal of treatment would be to treat the underlying cause.