: done or made quickly and without thought about what will happen as a result
: doing something quickly and without thinking carefully about what will happen as a result
: a group of red spots on the skin that is caused by an illness or a reaction to something
: a series of usually unpleasant things or events that happen in a short period of time
What made you want to look up rash? Please tell us where you read or heard it (including the quote, if possible).