What has worked for us...homeopathy!!!
Both my boys came down with PANDAS this year. My youngest (12) has had strep before, but not PANDAS. He also has autism. His started as verbal OCD in April...a week later he had a fever, swabbed for rapid and culture...both positive. Started homeopathy and the OCD cleared, then started zithro the next day. Did zithro for 30+ days. In the middle of the 30 days he started a biofilm protocol with the abx...the OCD and fever flared again. By the 6 week mark, the PANDAS completely subsided.
My other son had a sinus infection around the same time my other son had strep. He never had strep before (he is 14). He reacted to the ceftin he was put on for the sinus infection but he seemed to get better quickly. I never suspected strep in him. Three months later (July), he started having intrusive thoughts. He was put on zithromax for 30+ days, added in a biofilm protocol about half way through...no change occurred. We had been working with a homeopath for a number of years for acute situations and general health so I called right away. He was recommending remedies that were helping a little, but I found that a different remedy and then ultimately the strep nosode knocked it out. He had PANDAS symptoms for about 3 months. If he had been given the strep nosode sooner, I am pretty confident that the episode would have cleared up sooner.
Neither child has used IVIG or steroids.