My DS15 has PANDAS and we are waiting for insurance approval for IVIG. This past week my normally healthy DD17 went to the doctor with a sore throat and fever. They did a strep test and it came back negative. My DS symptoms have been flaring all weekend yet my daughter seems to be almost feeling now at 100%. Yet this morning I got a call from the pediatrician's office saying that the culture came back positive for Strep B. They said they usually don't treat this and that this is not the strain usually associated with PANDAS. My DS's PANDAS doc is not in on Monday's. Has anyone else had a past experience with Strep B and PANDAS? Do I need to worry? Should I get my daughter on abx? My son is still on Augmentin 875mg 2X a day.