What kind of rash is this? 10 days pp

So I have two rashes/skin irritations. One. the more red of the two, is in my upper left shoulder/back area. And the second one is right in the spot around where my epidural was given/inserted.

I’m 10 days pp, and I’m breast feeding also. Which is why I’m concerned.

Both are itchy, especially cus one is right at my pant waist, and the other where my bra band/strap is. I’m going to call in the morning to get it checked. In the meantime anyone have any ideas?