Painkillers are oftengiven to patients after an injury to help reduce the feeling of discomfort until the body is able to heal. The problem is that it ispossible to become addicted to certain prescription medications, so it can seem intimidating to take the medication. Painkillers are designed to help with moderate to severe pain that is hard to ignore. Pulled muscles or slight discomfort from a mild cut does not necessarily need any major treatment. However, healing from severe injuries will usually require some pain relief to help reduce the discomfort until the body is healed enough to avoid feeling that every movement is an agony.