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Cold sore
Also referred to as fever blisters, cold sores are small and painful fluid-filled blisters that are usually found around the lips. Cold sores are very contagious and can be spread by mouth-to-mouth contact and to the genitals, causing genital herpes through oral sex.
Dr. Geoffrey Rutledgereviewed this
Internal Medicine 39 years experience
How long it usually lasts:
Short-term (lasts days to weeks)
How common is it?
Very common
Very common | Extremely rare | Very rare | Rare | Common | Very common |
| Baby0-2 | |||||
| Preteen6-13 | |||||
| Teenager14-18 | |||||
| Young adult19-40 | |||||
| Middle-aged adult41-60 |
Body locations