unfortunately i can't can see or examine you. your description is vague. i can tell you that herpes tends to be tiny water-filled blisters (not white pimples) that come in clusters (not just one). you may have a mucous cyst but that is just a blind guess. you would need to see a medical provider or dentist for a definitive answer.
i have a samll white pimple inside bottom portion of my lip couls it be herpes?