Section: Skin and Hair
Blisters
Also known as: Skin blisters, Vesicles
Blisters symptom guide: what it can mean, possible causes, and when to seek care. Educational only.
Overview
Blisters often follow friction from shoes, mild burns, or viruses such as herpes. Popping them uncleanly can invite infection. Seek advice if they spread, come with fever, or appear near the mouth or eyes.
Possible causes
- Shoe or tool friction
- Burns or heat
- Viral infections (e.g. cold sores)
- Allergy to medicines or chemicals
- Skin diseases
When to see a doctor
See a clinic if blisters are large, pus-filled, spreading fast, or stop you walking.
Related conditions
Sources
This guide is put together from these references.