Likely Angular cheilitis / perioral dermatitis with secondary infection (dryness ,pain,lymph node tenderness).
Rx:
Oint Mupirocin 2% – apply thin layer twice daily × 5 days
Oint Clotrimazole 1% – apply twice daily × 7 days (after mupirocin dries)
Tab B-complex once daily × 14 days
Continue petroleum jelly frequently
Next Steps
If not improving in 5–7 days or if swelling worsens, consult a Dermatologist. You may consult me also via Practo.
Health Tips
Avoid lip licking, cosmetics near lips, spicy food.