Understanding Cold Sores Inside Your Mouth
What Causes Cold Sores Inside the Mouth?
Cold sores inside the mouth are typically caused by herpes simplex virus type 1 (HSV-1), the same virus responsible for lip cold sores. However, intraoral presentations may occur during primary infection or recurrent episodes, particularly when the immune system is compromised. These lesions can appear on the gums, inner cheeks, tongue, or roof of the mouth, often presenting as painful ulcers rather than the typical blisters seen on lips.
How Do Internal Cold Sores Differ From Lip Cold Sores?
Internal cold sores often appear as shallow, painful ulcers with white or yellow centres surrounded by red borders. Unlike lip cold sores that progress through distinct blister stages, intraoral lesions may skip the obvious blister phase and present directly as ulcerative lesions. They tend to be more painful due to constant contact with saliva, food, and tongue movement, making eating and speaking uncomfortable.
Treatment Options for Intraoral Cold Sores
Prescription antiviral medications like aciclovir tablets may be more beneficial for intraoral cold sores than topical treatments. EverydayMeds offers aciclovir 400mg tablets, which can help reduce viral replication when started early. Valaciclovir 500mg tablets provide an alternative with less frequent dosing. Treatment is most effective when initiated within 24-48 hours of symptom onset, during the initial tingling or burning sensation phase.
When to Seek Professional Advice
Cold sores inside the mouth warrant professional evaluation, especially for first episodes or severe presentations. Healthcare providers can distinguish between herpes lesions and other oral conditions like aphthous ulcers or bacterial infections. They may recommend prescription antivirals, topical anaesthetics, or additional supportive treatments based on severity and frequency of outbreaks.
