Replace your toothbrush when you get a cold sore to prevent reinfection, and replace it again after the sore has healed. Don’t pick at a cold sore, and wash your hands each time you apply ointment or touch the sore. If sunlight triggers cold sores, apply sunscreen daily to the area where cold sores develop.
However, preventing a cold sore is quicker and safer approach than treating an outbreak. People can try to avoid triggers that cause cold sores, keeping the sores on their skin from appearing in the first place. Preventing a cold sore may also help reduce the risk of spreading the virus to other people.
Avoid known cold sore triggers such as stressful situations, overexposure to the sun and any cuts or abrasions on or around your lips. If you develop a cold sore, keep your hands scrupulously clean. Avoid sharing glasses, beverages and foods with others when you are infected. Don’t kiss others when you have cold sores.
The Basics. Cold sores — you might hear them called fever blisters — are proof that life can be …
Cold sores might get confused with pimples, ingrown hairs, and canker sores, but they’re actually easy to spot once you realize what the symptoms are and how they differ.