Cold sores can have various causes, ranging in severity from 'worrying' to 'serious'. Finding the true cause means ruling out or confirming each possibility – in other words, diagnosis.
Diagnosis is usually a complex process due to the sheer number of possible causes and related symptoms. In order to diagnose cold sores, we could:
|Herpes Simplex Type I
Do you experience Cold Sores (Fever Blisters)? These usually appear as small blisters on the lips but sometimes appear on the face or inside the mouth, breaking down to form small ulcers and finally scabs. Note: These are different from Canker Sores.
Possible responses:→ Don't know
→ One outbreak, not repeated since
→ Infrequent outbreaks
→ At least one outbreak every two years