When OCD is left untreated, symptoms may get worse over time. It's unlikely that OCD will go away on its own. Someone with OCD may think their symptoms aren't that bad and will learn to live with the inconvenience caused by their illness, but in time, OCD can become completely debilitating.
They may be unable to get relief from their symptoms, resulting in isolation, insomnia, depression, panic attacks, or depression. People with ongoing OCD may find it difficult to hold down a job or focus on anything other than their obsessive thoughts. To cope with their distressing thoughts, people may seek out drugs and alcohol for relief.