Cold Sore vs Canker Sore: Symptoms, Causes & Treatments Compared
Introduction Struggling to tell a cold sore from a canker sore? Although they may seem similar, these two common mouth lesions have different causes, appearances, and treatments. Cold sores (also called fever blisters) are caused by the herpes simplex virus (HSV-1) and are contagious, while canker sores (aphthous ulcers) occur inside the mouth, are non-contagious,…