If she's not in any distress at this time (or doesn't have a fever) you can make an urgent appointment for her to be seen by a pediatrician but very soon. Will she let you take her temperature? You can use an ear thermometer. Is she eating good? The white lumps (stones) are very likely bacteria, sulphur compounds, & dead mucosal cells. She may or may not need a tonsillectomy, but she has an infection.

