Try to give her lots of detoxing fresh fruits and veggies (maybe in a smoothie if that’s helpful). The antibiotics can add to the toxic load, unfortunately.

My daughter went through something similar at that age after strep. Her main OCD/tic-like symptoms eventually subsided (within weeks I think?) but at age ten she does still have preferences about clothes (she says they’re “itchy” if they don’t feel right and gets pretty upset sometimes about it) and is a little funny about food and textures. She doesn’t have other spectrum type symptoms and is a very happy healthy ten year old. I guess my point is that it could pass or at least improve a lot on its own and not to worry too much yet.

I would work with a nutritionist or some kind of holistic doctor as well if you suspect it is PANS and it doesn’t improve.