Wife bit by our dog and looks infected. Help please.

Hello, my wife was bitten by our dog last saturday. She only used peroxide and did not thoroughly rinse the wound. It's now Thursday and it looks infected and there seems to be some tissue decay. I have her taking silver and oregamax. I am also very worried about Tetanus and have heard that MMS can stop it (the toxin). What oral dosing is recommended and what topical (DMSO + MMS dosage)?
Thank you so much for any help.