Can you put her alone in a small cage covered with a sheet? Sometimes confining a sick hen for 1 to 2 weeks with unlimited food and drink with occasional snacks in a warm spot will help give her a break to fight infection. Keep her in a quiet spot and the sheet over the cage will allow her to rest. I would put a fresh bandage on her foot covering the spot with polysporin and let her rest. Might want to contact the vet about the meds...she might need another? Not sure