What do i do if my iguana has a cut its not deep or a large cut how can i heal it?

If it hasn't stopped bleeding yet, I suggest you put some regular baking flour, or styptic powder, on it until it does. Then wipe the wound clean with some clean water and dry. Then use some Neosporin WITHOUT pain killer added (pain killer can kill your reptile) or you can use some Betadine solution (mix with water until it is a weak tea coloration) and put some on the wound to disinfect it. Watch the wound closely until it has completely healed. If you see any sign of infection (foul smell, swelling or irritation, or it just isn't healing) seek vet istance asap.