Ringworm quick treatment?

I think I have ringworm on my wrist, size of maybe a dime. It has a raised ring around it, but the inside is dicolored, it's not my skin color, it's a dark brown/slightly pinkish (I have an Indian skin tone)

So how do I make this go away fast? School starts on Monday, so I want it to go away or want to hide it somehow... I've been putting rubbing alcohol on it every 30 minutes.. I also put a piece of garlic on it for a little while earlier. I think I've had it for atleast 3 weeks. I noticed it a while ago, but it just seemed bigger today, so I paid more attention to it.... Also, I think I might have gotten it from a kitten when I was volunteering a few weeks ago.

So, what should I do to make it go away quickly? And how could I kind of hide it at school on Monday?