People who get cold sores know the feeling before anything is visible: a tingle, itch, or burn at the edge of the lip. That early warning — the prodrome — is also your treatment window. Act inside it, and you can often shorten the whole episode.
What cold sores are
Cold sores (herpes labialis) are caused by a very common virus that stays dormant between episodes and reactivates with triggers like sun exposure, cold wind, stress, illness, and fatigue. They're contagious from the first tingle until fully scabbed, so no sharing lip balm, cutlery, or kisses during an outbreak — and be careful around newborns.
Why speed beats strength
Antiviral treatment works best when started within the first 24–48 hours, ideally at the tingle stage. That's exactly where pharmacy access shines: no waiting three days for an appointment while the window closes. Ontario pharmacists can assess cold sores and prescribe antiviral treatment when appropriate — free with a valid Ontario health card — often within minutes of you walking in.
For frequent sufferers
If outbreaks come several times a year, it's worth a conversation about prevention: sun protection on the lips year-round, trigger awareness, and treatment strategies for future episodes so you're never caught without a plan.
Feel the tingle? Don't wait it out. Come straight in for a free assessment. Orleans Community Pharmacy · 613-824-3111 · https://orleansrx.ca/pages/minor-ailments.
Read next: "Winter flare season: cold sores, dry skin and eczema"
This article is general information, not medical advice. A pharmacist assessment is required to determine whether treatment is appropriate for you; some situations need a referral to a physician or nurse practitioner, and Ontario pharmacists prescribe only within their permitted scope. Orleans Community Pharmacy · 2746 St-Joseph Blvd, Unit 100, Orléans, ON · 613-824-3111.
