Some doctors recommend avoiding over-the-counter pain medications that can increase your risk of bleeding — such as aspirin, ibuprofen (Advil, Motrin IB, others) and naproxen sodium (Aleve) — during the first 48 hours after a muscle strain. Acetaminophen (Tylenol, others) can be helpful for pain relief during this time period. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.