Hi. Thanks for your query. Noted the history and understood the concerns. The pain from injured xiphoid process can be nagging and troublesome as all the movements that include trunk instigates pain and makes even trivial activities troublesome. It is good and important that cardiac check up is normal. The standard treatment is as follows: Anti-inflammatory medication Oral or local injectable steroids. Strict bed rest. Laxatives if constipation. Deep breathing exercises to avoid atelectasis. Review by your regular Doctor for further management.