Hi I am Dr.kadhir,
First i would like to reassure that feeding your child does not harm her by any means. There is no contraindication for nursing, you can continue to feed her.
Breast milk has a good anti microbial property and it is safe.
It is not necessary to take her to doctor unless she has symptoms of infection like fever
, reduced activity, vomiting/ loose stools/ refusal of feeds.
It is important to prevent her from acquiring the infection , the best way is to maintain a strict hand hygiene while preparing her food or handling her.
Hope i have cleared your doubts. Thank you for the consultation in healthcare magic.