So sorry for your loss
. Your daughter is just to cute . The dog will come back if not dealt with . Either secure your chickens or take out the dog .Sad to lock up chickens for their own safety . Sometimes it's all you can do .Flush the wounds with hydrogen peroxide and apply a wound dressing. Neosporin will do .Good luck 
We're so happy you've decided to join us
You're DD is beautiful as are your birds
So sorry for your losses
what can I do to help their wounds?
We are glad you joined our flock.