Terrible Sunburn before prom and I need help!!!

This past Friday I had an outdoor event at school on a cloudy and cooler day, so I was out in my t-shirt the whole time with no sunscreen. For context, I’m very pale with ginger-y hair so the sun is not great for me. Anyway, I came home and had an awful sunburn all across my chest and some on my arms. It is now Sunday and it is red and a little swollen. I have been putting aloe, lotion, and ice on it in some spots.

My prom is on Wednesday and I absolutely need the redness to go down. I have a self tanner I was planning on putting on today prior to the sun burn and I’m hoping that might still even it out.

If anyone has any suggestions please let me know! Thank you!!