Understanding Cold Sores on the Side of Your Mouth
Why Do Cold Sores Appear on the Side of the Mouth?
Cold sores can develop anywhere around the mouth area, but the side of the mouth is a particularly common location. This area experiences frequent movement from talking, eating, and facial expressions, which may trigger outbreaks in people who carry the herpes simplex virus. The corners and sides of the mouth also have thinner, more sensitive skin that can be prone to cracking or irritation, potentially providing an entry point for the virus to become active.
Recognising Cold Sores at the Mouth Corner
Cold sores on the side of the mouth typically begin with a tingling, burning, or itching sensation before any visible symptoms appear. Within 24-48 hours, small fluid-filled blisters may develop along the lip line or mouth corner. These blisters can make normal activities like eating, drinking, or even smiling uncomfortable. The location can sometimes make it difficult to distinguish from other conditions like angular cheilitis (cracks at mouth corners), so proper identification is important for appropriate treatment.
Treatment Options for Side-of-Mouth Cold Sores
Antiviral medications such as aciclovir tablets may help reduce the severity and duration of cold sore outbreaks when started early in the episode. EverydayMeds offers prescription aciclovir 400mg tablets and topical aciclovir 5% cream for cold sore treatment. Valaciclovir is another antiviral option that may be prescribed. These treatments work by inhibiting viral replication, potentially shortening the outbreak duration from the typical 7-10 days. Topical treatments can be particularly useful for accessible locations like the side of the mouth.
Managing Discomfort and Preventing Spread
Cold sores on the mouth side require careful management to prevent spreading the virus. Avoid touching the affected area and wash hands frequently. Use separate towels and avoid sharing eating utensils or lip products. Over-the-counter pain relief may help manage discomfort. Keep the area clean and dry, and avoid picking at blisters or scabs. Some people find that applying ice to the area during the initial tingling stage may provide relief, though this should be done carefully to avoid ice burns.
