Ringworm

What's the best over the counter cream that treats ringworm. My son has like 10 of them! I only have one. They are on his legs arms and sadly his face! He has 6 on his face): I need help going to buy cream in the morning. We have been using jock itch but only cause it was cheap and easy to find we were at the lake. I need comments on the best stuff that you've used and it worked really well.