Very small bump near lip-line, not painful, slightly itchy, can it be herpes? Looks more like whitehead. The bottom lip-line seemed reddish and slightly burning, I have been rubbing/biting/ applying moisturizer since last few days because of anxiety

Exam needed. This could be a small inclusion cyst but without examining you a diagnosis can't be made. See your physician or a dermatologist for evaluation if this lesion persists. Try not to irritate this lesion. Ask your pharmacist for a soothing cream or lotion suitable for lips.