No, relapse does not mean that treatment has failed. Like cancer, substance use addiction is by nature prolonged and recurrent, so relapses are common. If your child has a slip or relapse, it doesn't mean that the time spent recovering is wasted. The main thing is that they continue to move forward.
If it relapses, you must accept the disappointment. But this doesn't mean that you failed. It simply means that you can accept the fact that there are challenges in life that will test you and that you won't succeed in any of them, and that's OK. The last line of this passage makes a difference.
Relapse doesn't indicate failure, as long as we learn something from it. In fact, this supposed failure often drives us to work twice as hard on our recovery, benefiting our personal growth in the long term. Another way of saying it would be that relapse only results in failure if we allow ourselves to see it as such. The final result? Not only is relapse common in most people with addiction, but tens of millions of Americans have recovered from chronic substance abuse.
Relapse doesn't mean you've failed, but it does mean you need to re-examine the reasons you started using it again. One of the main challenges of cocaine addiction, for example, is the high relapse rate after periods of abstinence and withdrawal. Returning to environments or activities associated with previous drug use can trigger strong cravings and cause relapse. Even so, this should not be considered a failure.
While relapse may be common, seeking support for addiction rehabilitation can make the difference between sobriety and experiencing a relapse. He also knows that addiction is a chronic brain disease that requires lifelong treatment, and that addiction relapse rates similar to those of other chronic diseases, such as diabetes and high blood pressure, are high.