Braces cut lip, now lip sores.?

Well this is kinda embarrassing but here it goes. Me and my girlfriend were kissing the other day and her braces cut my lip. Now there are two yellow sores there and it hurts to eat and to even touch the sores at all. Can I like rip them off so the will heal or will they heal over time? Thanks for all the help.
Update: @Lloyd, thanks and xD we weren't even making out it just barely touched her braces _
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