Cold Sore vs Canker Sore: How to Tell the Difference and Treat Each One

Cherlie Joseph, MSN, FNP-BC

Published on: NaN/NaN/NaN

Cold sores are contagious blisters on the outside of the lip; canker sores are non-contagious ulcers inside the mouth. Compare causes, looks and treatments.

cold sorecanker soremouth soresoral herpesmouth ulcers

Cold Sore Stages: A Day-by-Day Guide From First Tingle to Healed Skin

Naurah Gaspard, DNP, FNP-C, FNP-BC

Published on: NaN/NaN/NaN

Cold sores move through 5 stages over 7 to 10 days: tingle, blister, weeping, crusting and healing. See what each stage looks like and how contagious it is.

cold sorescold sore stagesHSV-1fever blistersoral herpes

Cold Sore Treatment: Valacyclovir, Abreva and What Works Fastest

Cherlie Joseph, MSN, FNP-BC

Published on: NaN/NaN/NaN

Prescription valacyclovir works best at the first tingle and can shorten a cold sore. Compare valacyclovir, Abreva and other options, plus tips to prevent outbreaks.

cold soresvalacyclovirValtrexAbrevaoral herpes