Most people find that the symptoms of concussion are gone within a few days. However the chemical changes in the brain do not return to normal for at least a week and during this time it is important not to experience another blow to the head.
In some cases symptoms will last longer than a few days. If symptoms persist for a week or more you should go to your doctor or a concussion clinic for further evaluation. In rare cases a person can have symptoms that persist for three or more weeks and this is called “post concussion syndrome”. Post concussion syndrome should definitely be treated by a knowledgeable health care practitioner. If untreated, post concussion syndrome can lead to difficulties at work or school, not to mention considerable discomfort to the person with the symptoms.