Hi there! I understand your concern. It is unlikely that the vaccination caused the bumps, especially since it has been 12 days. She most likely has a viral exanthematous illness or depending on where you stay, mosquito bites? Press the papules and see, if they blanch and turn pale for a second or two, they are most likely insect bites. Meanwhile if she seems irritable (she is too young to itch), give her cetrizine to ease the irritation. Watch out for: 1. More lesions, especially near the face 2. High grade fever T 102 F 3. Refusal to eat or drink anything If the above are there, take her to a pediatrician, otherwise the bumps should disappear in a week or so. Hope this helps..!