Wash it with a first aid wash every day, at least twice, but if you can't afford that then use some salt water.
It's gonna sting, but I doubt that's gonna worry you.
Then pat it dry with something that's not fluffy or anything, like kitchen towel would be good.
Then put a fair blob of antiseptic cream on it, then put on a large band-aid, or better yet a gauze with the shiny side down, and then wrap it.

I've done a really bad burn one time and went through the same thing. It went all kinds of green during keeping it clean and stuff, but it eventually healed and scarred.