There's no texture or feel to these bumps (ones at the corner of mouth) as if they are scars. The ones on upper lips, are super fine and tiny but I can feel the bumps.
These can be Fordyce spots of lips. They are small yellowish-white granules on the inner surface and border of the lips.
Treatment of Fordyce spots includes CO2 laser or electro desiccation, TCA chemical peels(temporary treatment),diathermy or laser vaporization.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.