My husband noticed a large bruise right forearm 2-3 days ago, swelling and tender. Thot he’d just hit it and hadn’t remembered. Bruising has now extended to his wrist and above elbow inner aspect. Do not see evidence of insect bite. Doesn’t itch. Feels swollen and tender. Started clindamysin 3 days ago and went off plavix same time for upcoming dental extractions. What could this be?