Cold sores (herpes labialis)
Tingling before a blister on the lip? Antiviral creams or oral antivirals started early shorten the outbreak.
- Seen within 1 hour
- Free delivery
- Free with OHIP
Common symptoms
- Tingling or burning before blister
- Clustered blisters on or near lips
- Crusting as they heal
When we'll refer you instead
If any of these apply, we send you to the right care instead — no charge, no wait.
- Immunocompromised
- Infant under 1 year
- Spread inside the mouth or to eyes