Ringworm

a skin disease. It is caused by a minute parasitic plant which starts in small patches and spreads like a mold in every direction, thus forming rings. The name was given in a belief that the circles of inflammation were due to a minute worm burrowing in the skin. There are several kinds, all contagious and easily communicated. Although the disease is not dangerous, it is very annoying. One who is afflicted with it should have his own towel, sheets, and pillow cases. Like the itch, ringworm may be cured, usually by an application of mercurial ointment.