Have rosacea & 2 raised red bumps on cheek. Dr suggest shaving them off & laser. Also have keloids. Will this work? Could it scar badly due to keloid?

Patients who keloid. can be at higher risk for keloids. I would confirm that you really have keloids and not hypertrophic scars. There is no guarantee so if spots bother you then you can try shave and laser (make sure this is with a dermatologist), but if they don't bother you why take the risk.