All effects of trauma can take place either over a short period of time or over the course of weeks or even years. Any effects of trauma should be addressed immediately to prevent permanence. The sooner the trauma is addressed, the better chance a victim has of recovering successfully and fully. Short-term and long-term effects of trauma can be similar, but long-term effects are generally more severe. Short-term mood changes are fairly normal after trauma, but if the shifts in mood last for longer than a few weeks, a long-term effect can occur. While trauma, unlike some other mental disorders, is induced by an event or experience, it can be treated through the use of certain medications. Not all trauma requires medication, but it can be a useful tool in treating the symptoms of trauma, such as anxiety and depression. It is important to work with a healthcare professional to determine whether medication is necessary.