Suggest Treatment For Bump On Lower Lip

I have a pimple like bump on my left lower lip for months now. It gets pus filled and sometimes I pop it and then it goes down but doesn't go away. Can I send you a picture of it? I'm wondering what it is. It won't go away. It doesn't hurt, like a regular pimple. I am 46 years old and very light skinned. I have red hair and freckles. Thank you