Is she taking breastmilk? For how many days she has fever? Is she active? Did she vommited only once?Any other symptoms?
It seems , that she has a viral infection, such symptoms usually recover by its own, she only needs symptomatic treatment. You can give her Tylenol syp, to keep temperature down . As she is active and taking feeds, so i will not worry. Keep an eye on her activites. She can be given Benadryl® for running nose.If the symptoms dont get resolved in 3-4 days, then she should be seen by Child specialist.