If my character receives one sharp bite on her hand, from a medium sized mongrel (not a dangerous breed) who is warning her to keep away from him; what kinds of injury is she most likely to get? How would it be treated? How painful would it be?

I'm thinking she would have had her hand outstretched, slowly approaching from the front to pet his head, so the bite lands somewhere between her thumb and ring finger. For the purposes of my story I need the bite to be bad enough to temporarily prevent her from manipulating items, and to be inconvenient until healed.

I googled the subject of dog bites and was pretty horrified by what I read and the images I began to see. Couldn't do that anymore.

So all comments or input welcome and gratefully received.