Extremely itchy, red and hives

St

I’m 3 weeks and 2 days postpartum and about a week after the baby was born I developed this uncontrollable itch with red hives on both my legs and arms. As a result of itching I’ve also bruised so badly. I had my post-op appointment earlier this week and my doctor did a blood test to see if anything shows that would cause the itching and hives. however, due to the holiday, I haven’t gotten the results back yet. I’ve tried Aveeno anti-itch cream and it’s not helping.. has anyone else experienced this? It’s horrible. I feel like I’m going to scratch my skin off and no matter how much I scratch there’s no relief.