According to Elizabeth Hartney, PhD.

"During a relapse, a person returns to using a substance. A single use might cause a person to feel unmotivated, guilty, or ashamed of their actions. It can also result in intense cravings that then continue to further use. After a relapse, getting back on track as soon as possible is important."

This article gives facts about relapse, and ways to respond to relapse positively. 

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