[header] How to treat pericarditis [title] Recognize the symptoms of a pericarditis attack. [step] Most pericarditis attacks come on quickly and do not usually last long. The most common symptom is a sharp, stabbing chest pain that may be in the middle or left side of your chest. 
The pain may also be in one or both shoulders or feel like a heart attack. Being able to recognize symptoms of pericarditis can ensure that you get prompt care.