Then they pop, ooze, scab over and eventually heal. Every few months, this cycle repeats. Cold sores, also known as fever blisters, can develop after infection with the herpes virus. (They’re ...

Since then, I have been plagued by cold sore anxiety and admin. Last year, a slight tingle triggered me to cycle around all of Hackney’s pharmacists in the quest for cold sore cream so that it ...

The NHS notes: "Certain things may trigger a cold sore, such as illness, sunshine or being on your period." Similarly, ulcers are another common mouth ailment that should clear up on their own.