lip pimple or cold sore?

Leah • always try and be happy, no matter what the circumstances
Okay so I might sound stupid but whatever. 
I have 2 little bumps on my lipline. Of course being the hypochondriac I looked all the possibilities up. So I used cold sore medicine and pimple medicine to see if it would get rid of it and now I'm out of options. The pimple medine got rid of other pimples on my face but not the lip one. So what could this be? And what could I do to help it? It's really embarrassing at school, people notice.
Also I have hot cheeto crumbs on my face, don't judge