Sorry, olive oil dosen't work the same, it would help keep the scabs soft and help block new germs from getting in, What do you have for sores on people? If it can be put on and is not toxic, it will help some,
1st of all, get bunny off the wire, ask places that sell sheet rock for some broken pieces, you can often get stuff for free like that, or just use a brown paper bag or part of a feed sack, (not cat or dog food bags they have plastic layers)
Anything that will clean the sores will help, but keep in mind that bunny will lick it off, and could get sick from it, olive oil wouldn't hurt unless he drank it, washing with a warm rag and a natural soap, would help.I have also used Bag Balm on my rabbits feet, nobody had troubles with it that I could tell.
IF the soars get infected, white sugar packed in and held on with a Large band-aid, would help kill the germs without hurting as bad as salt would, bunny will Chew it off, so you have to watch for it and take it away when it comes off. White sugar mixed with crisco or vasaline is used for bed sores on people, it should work on sore hocks, but it would be really messy! Some fresh DARK green leaves, such as parsley or spinach, from the grocery store will help with the vitamins, but just a little at a time, like just one spinach leaf in the morning and one at night, because a bunny that is not used to it can get sick and die from new foods.
I really can't think of anything else, but be careful, most things used for people's sores could make a rabbit sick if they licked it off.