Understanding Cold Sore Prevention and Treatment
Why Cold Sores Develop on the Side of Your Mouth
Cold sores can appear anywhere around the mouth area, but those on the side of your mouth may be particularly bothersome due to movement when eating or speaking. The herpes simplex virus type 1 (HSV-1) remains dormant in nerve cells and can reactivate due to various triggers, causing recurrent outbreaks in similar locations.
Primary Prevention Strategies
The most effective approach to preventing cold sores involves identifying and avoiding personal triggers. Common triggers include stress, fatigue, hormonal changes, illness, and UV exposure from sunlight. Keeping a diary of outbreaks can help identify patterns and specific triggers in your case.
Sun protection is particularly important, as UV radiation frequently triggers outbreaks. Use lip balm with SPF protection and wear a wide-brimmed hat when spending time outdoors. During winter months, cold weather and wind can also trigger outbreaks, so protect your lips with appropriate barriers.
Lifestyle Modifications for Prevention
Maintaining a strong immune system is crucial for preventing cold sore outbreaks. Ensure adequate sleep, typically 7-9 hours per night, and manage stress through relaxation techniques, regular exercise, or meditation. A balanced diet rich in lysine (found in fish, chicken, and legumes) whilst limiting arginine-rich foods (chocolate, nuts, seeds) may help some individuals reduce outbreak frequency.
Good hygiene practices are essential, particularly during active outbreaks. Avoid sharing lip products, utensils, towels, or razors. Wash hands frequently and avoid touching your face unnecessarily. Replace your toothbrush after an outbreak to prevent reinfection.
Medical Prevention Options
For individuals experiencing frequent or severe outbreaks, antiviral medications can provide effective prevention and treatment. Aciclovir tablets, available through EverydayMeds, represent the most commonly prescribed treatment for cold sores. The standard dose is typically 400mg taken five times daily for five days when started at the first sign of an outbreak.
Valaciclovir (Valtrex) offers an alternative with more convenient dosing - usually 500mg twice daily for three days. This medication converts to aciclovir in the body but requires fewer doses per day, which may improve treatment adherence.
For those experiencing very frequent outbreaks (more than six per year), suppressive therapy may be recommended. This involves taking antiviral medication daily to reduce outbreak frequency and severity.
Topical Treatment Options
Aciclovir cream (5%) can be applied directly to the affected area at the first sign of symptoms. Whilst topical treatments are generally less effective than oral medications, they may provide some benefit when used early in the outbreak cycle. The cream should be applied five times daily for five days.
When to Seek Professional Advice
Consult a healthcare professional if you experience frequent outbreaks, severe symptoms, or if cold sores don't heal within 10-14 days. Individuals with compromised immune systems should seek medical advice promptly, as they may require different treatment approaches.
EverydayMeds offers convenient online consultations and prescription services for cold sore treatments, including aciclovir tablets, valaciclovir, and topical preparations. Our qualified pharmacists can provide personalised advice on prevention strategies and appropriate treatment options based on your individual circumstances.






