hickey help ASAP

so a little over a week ago my boyfriend gave me a hickey on my chest. It doesn't normally take this long for them to go away unless they're really dark. You can still see it, but I have to try on dresses with my family. My aunt is visiting and she brought some of my cousins old prom dresses for me to try on. I need to get this hickey to go away by tomorrow, I don't exactly want all of my family to see it. FYI I know that everybody's go to is make up but I would prefer that be my very last resort as I'm not very skilled with it nor do I have the right shade I need in my house. Thanks in advance.