People i need help!!

Okay so my boyfriend thought that it would be cute if he bite me. Well he did in my arm and he left my a bruise now normally i wouldn't care but i just remember that i need to get my shots for school and i need to get rid of the bruise and i don't know how. So people do you know how to get rid of bruises quickly without make-up? I know what you're think omg this girl's weird i would never let some one bite me. I know it sounds weird but it's kinda our thing lol yeah we're a weird couple but also a cute one(haha that sounds cheesy) Please can anyone help me, i would be grateful(: Anyone know how to get rid of bruises??????