Fever blister from fever
A fever blister is usually a herpes simplex cold sore activated by illness or another trigger, not created by fever itself.
What is the direct answer?
A fever blister is usually a herpes simplex cold sore activated by illness or another trigger, not created by fever itself.
What does this question mean?
Grouped blisters commonly appear on the lip border, then crust; inner-mouth ulcers can have other causes.
What can you do next?
Avoid picking it, wash hands, and avoid kissing or sharing utensils while the lesion is active.
When should you seek dental care?
Seek assessment for an eye lesion, extensive disease, unusual pain, repeated episodes, or immune suppression.
What should you ask the dentist?
Ask whether the location and appearance fit a cold sore and whether early antiviral treatment is appropriate.
Frequently asked questions
What should I watch for?
Seek assessment for an eye lesion, extensive disease, unusual pain, repeated episodes, or immune suppression.
What happens at an appointment?
Avoid picking it, wash hands, and avoid kissing or sharing utensils while the lesion is active.