Triple antibiotic on wounds as you've done. Wounds can be cleansed with 9 parts water/1 part betadine.
For pain, 1 baby aspirin (81 mg) per cup of drinking water, changed out to fresh batch twice daily. Of course, you can quarter a regular 325 mg to get same dosage (as noted above, can give so long as she is not actively bleeding and if you don't suspect internal bleeding). Do not substitute other pain relievers without being sure they are okay for chickens. If the pain and trauma has caused her not to eat or drink well, you can cut up bits of favorite fruits and dunk in the aspirin water and try to hand feed her. If she accepts this, then she will begin to get a bit of pain relief which should encourage her to eat/drink on her own.
Lots of TLC, quiet, comfortably warm cozy comfy place to rest with all her creature comforts close at hand.
Electrolytes if you suspect she is shocky at all - in a pinch you can spritz a little Pedialtye or Gatorade on a favorite treat. A drop or two of Rescue Remedy in her water or on a bit of grape or blueberry or whatever she likes may help create a calming effect to help her heal.
Treats to lift her spirits.
JJ