Organization for Understanding Cluster Headaches (O.U.C.H.)

The Organization for Understanding Cluster Headaches (O.U.C.H.) is an information and support organization for people who have cluster headaches. These are headaches that come in groups and are very severe in intensity. They can last from 30 minutes to two hours. This rare headache condition affects less than one tenth of one percent of the world’s population. OUCH serves an international audience. In addition to providing information, it encourages and participates in research.