I am sorry about your son's dog attack and injury. I understand that it must be very difficult for you given the fact that the dog is your mother's dog. In order to recover for your son's facial injuries as a result of being bitten by the dog, you will need to bring suit against your mother, the owner of the dog.
If your mother has a homeowners or renters insurance policy, you may be able to recover for your son's injuries, damages and medical expenses through her insurance policy.
Even if your mother does not have a homeowners or renters insurance policy, there may be other liable parties such as the dog breeder or trainer. However, I would need to speak with you to get the details of the dog attack and perform a thorough investigation to determine all liable parties.
I understand this is a difficult situation with your mom being the owner of the dog. Feel free to contact me at 877.944.8396, and I will answer your concerns and questions about your son's dog attack.
For more information about PA and NJ dog attack or dog bite cases, see: