Does she itch???
Looks like the bumps/hives that my dog gets during flare up from allergies.
Does she itch, or have them anywhere else?? If that’s where the other pup bites her when playing it can be from him biting while playing, but if she is itchy, it could be allergies.
Does the other pup have them on him from her biting him?
It looks like allergic bumps/hives, but it also could be bite marks.
If she is itchy or it gets worse, then she could be allergic to pollen or grasses or the food she is eating.
Are they still on Bil-Jac?? I hope I remembered the food correctly, if not what is it that your feeding??
Red paws, or any other spots on her anywhere else??
Also I would be worried about them gonna get infected, I would watch them and make sure they don’t get worse cause if it’s from the other pup from playing or from allergies, it’s easy for those spots to get infected(my dog gets them sometimes from allergies and he gets skin infections when he gets lots of those sores/bumps, doesn’t take long for them to get infected), just watch it to make sure it heals