Cold Sores:
These sores located generally where the red part of your lip touches the skin of your face are viral in nature. Herpes Simplex One viruses are the inhabitants of these slow to heal, scabby sores 
that are seen after excessive exposure to the sun, stress, or after fighting off a cold. They heal on their own over the course of 2 weeks. Keeping them moisturized is usually helpful in keeping the affected person comfortable during the healing process.
