Treating a severely split lip

I'm not sure if this is the right category to post in, but I was just wondering if any one knew of a way to heal a severely split open lip.

My disabled aunt fell down the other day, and landed directly on her face. She has multiple contusions all over her face, black eyes, broken nose, scraped up knees. But the worst part is the fact that she split open her lip pretty bad. The worst I've ever seen.

It looks like an entire chunk is missing from the very center of the bottom lip. So, far, I'm treating it by having her drink lots of water & tea. Clean it out multiple times a day. I have a few things she uses to cleanse her mouth out. The main one was a collodial silver drink, with a few drops of DMSO. I am also rubbing a little bit of Vitamin E Oil on the external part of her lip.

Can anyone tell me if these are good or bad? or let me know of something more effective. Thanks... in advance.