1 doctor weighed in:

How long do viral blisters usually last in a 3 year old child's mouth?

1 doctor weighed in
Dr. Barry Bergman
Pediatrics

In brief: 5-7 Days

Allot depends on the virus causing the blisters but most will resolve in a relatively quick time.
They can be a real nuisance, but most will resolve in a 5-7 day period.

In brief: 5-7 Days

Allot depends on the virus causing the blisters but most will resolve in a relatively quick time.
They can be a real nuisance, but most will resolve in a 5-7 day period.
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