Breakthrough pain is a sudden, short, sharp increase in pain that occurs in people who are already taking medications to relieve chronic pain caused by conditions such as arthritis, cancer, or fibromyalgia. Breakthrough pain may also be called a pain flare and it may occur with exercise or physical activity, coughing, illness, stress, or during the period between pain medication doses. The pain level is often severe, but the location of the pain is usually the same as the person’s chronic pain.
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