Canker sores and cold sores are both non-threatening blisters in and around the mouth, but there are a few key differences ...

The best home remedies for cold sores include taking lysine supplements, applying lemon balm, and using an ice pack.

Cold sores, also known as fever blisters, can appear on your mouth or lip and are usually caused by oral herpes or herpes simplex virus type 1 (HSV-1). “It’s extremely ubiquitous,” says Alexandra ...

Cold sores are more prevalent than most people know, but with a combination of anxiety, stigma, and confusion. Most are ...

The cold sore-causing Herpes Simplex Virus (HSV-1) hijacks human cells and reconfigures its DNA within just an hour after infection, according to a new study that may help tackle the pathogen. Viruses ...

The most common symptoms, according to the NHS, are: Many of the symptoms between cold, flu and more serious viruses like ...

For many years, scientists have known that the herpes simplex virus-1 (HSV-1), which causes cold sores, can take up residence in parts of neurons in the peripheral nervous system. Stress can even ...

A 2025 BMJ study came to similar conclusions. It suggests that people who have had a previous case of HSV-1 are 80 percent ...

As of October 2025, the predominant covid-19 strains circulating are the Omicron subvariants XFG, known as "Stratus," and NB.

The season of sniffles and sneezes is upon us, but can you tell which is affecting you? It can be hard to tell different ...

Dear Doctor K: I get painful cold sores in my mouth every couple of weeks. Why do I get them? And what can I do to make them go away faster? Dear Reader: Cold sores are caused by the herpes simplex ...

Cold and flu seasons are back this fall in Michigan and you can protect yourself with a shot. Here's what to know.