Face reacted badly to a chemical peel

Guys I don't know what to do? I have sensitive skin and decided to get a chemical peel as the girls at the spa told me my skin can handle it as I regularly use retinol and other high intensity products on my face. Although it wasn't so bad during the peel and I followed all the proper aftercare instructions, my face has been super itchy and slightly irritated ever since. I can't stop scratching it. And although it feels soft as smooth, it looks and feels like I've got hives on my face :( all over my cheeks and chin.