Suggest Treatment For Red Marks In My Skin

I waxed my arms for the first time and I think the wax might have been too hot because when I was done there were red parts on my arms. A day later I had black spots on the parts that were red. At first I thought they were leftover wax, but I have tried removing them with baby oil but it does nothing. I'm worried if they are burned. I really hope not. Please help!