Rash began little less than a week ago. Began as just itching with no signs of rash or bumps. It grew very quickly. By Monday was obvious red bumps and circles similar to ring worm. Just in my experience ring worm does not cluster in this manner. It has multiplied and began spreading up left side of my face and a few bumps down the left arm. It itches extremely bad. Just need to make sure it is not contagious or if I should seek medical attention. Cortisone has helped with the itching and seems to have lessened the redness.