Who gave you stuff to use? The vet? If so, I would use what the vet gave you -- if it's a prescription, the concentration of medication will be stronger than anything you could find online.
Make sure to keep checking yourself and any other people or animals who live in your house. Ringworm is contagious and some people and animals are VERY sensitive to it. I personally don't catch it, even after being directly exposed at the vet's office where I used to work, but some folks do catch it very easily.
Never make someone a priority in your life when that someone treats you like an option.