Cold sore is fluid filled blisters on and around the mouth area.
Also known as a fever blister, cold sore is a common type of the herpes virus and is spread from one-on-one contact such a kissing. Cold sore generally takes 2-4 weeks to heal.

Symptoms include:

• Itching or tingling feeling before the blister even appears.
• Blisters forming grouped together
• Discharge and crusting of the fluid from the blisters.

Cold sore commonly come from the herpes simplex virus from one-on-one contact.

Anyone can develop cold sore. But you’re at increased risk if you:

• Have a weakened immune system
• Ill and fever
• A lot of sun exposure or sunburn
• Damage to the skin
• Hormonal changes

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