It is very understandable to feel concerned about unexplained bruising. Both Clopilet A 75 (which contains clopidogrel and aspirin) and the steroids you recently took can definitely cause or increase bruising. These medications thin your blood and make your blood vessels more fragile. While your chronic hives are unlikely to cause bruising directly, intense scratching can sometimes contribute. Since you are taking a blood thinner, please share these symptoms with your prescribing doctor. They can safely evaluate your bruising, check your blood counts if needed, and ensure you are on the safest treatment plan. You are doing the right thing by paying attention to these changes.