Hello,This is Dr. Christian. Welcome to JustAnswer. Peroxide can actually damage tissues so your best option is to flush the wound with warm water. That can be done several times a day. It will promote healing and flush out the infection. You can apply nesporin to the wound in a very light coating but definitely have him seen by a vet. The neosporin won't help the infection under the skin, that will require a prescription of antibiotics from your vet. If you have more questions please reply back.
Wow thanks about the peroxide. I read somewhere that you could use it..
It seems that it is no longer draining or at least if I put some pressure to it nothing is oozing like it was friday and yesterday. Not sure if I should even be messing with it.