How to Treat Cold Sores: Complete Dosage Guide

Cold sores are caused by the herpes simplex virus and affect up to 70% of the UK population. Effective treatment with antiviral medications like aciclovir can significantly reduce outbreak duration and severity when taken at the correct dosage. Understanding proper dosing schedules and treatment timing is crucial for optimal results. This comprehensive guide explains dosage recommendations for different cold sore treatments available through licensed UK pharmacies.

  • Start treatment at the first sign of tingling for maximum effectiveness
  • Aciclovir 400mg tablets: standard dose is 5 times daily for 5 days
  • Topical aciclovir cream should be applied every 4 hours during waking hours
  • Valaciclovir offers convenient twice-daily dosing compared to aciclovir tablets
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Choose from a wide range of clinically-proven, safe, and effective treatments for Cold Sore.

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Aciclovir Tablets

From £12.99

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Aciclovir 5% Cream

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Valaciclovir

From £18.99

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Valtrex

From £34.99

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Understanding Cold Sore Treatment Dosages

Aciclovir Tablets - Primary Treatment Option

Aciclovir 400mg tablets represent the most commonly prescribed oral treatment for cold sores. The standard dosage is 400mg taken five times daily for five consecutive days. This frequent dosing schedule helps maintain therapeutic blood levels of the antiviral medication. Treatment should ideally begin within 24 hours of symptom onset, preferably at the first tingling sensation. EverydayMeds stocks aciclovir tablets which require a valid prescription from a registered healthcare provider.

Alternative Dosing Schedules

Some healthcare providers may prescribe aciclovir 200mg tablets, requiring a dosage of 200mg taken five times daily for five days. Higher-dose regimens using 400mg tablets taken three times daily may be prescribed for severe or frequent outbreaks. The choice of dosage often depends on individual patient factors including outbreak frequency, severity, and previous treatment response.

Valaciclovir - Convenient Alternative

Valaciclovir offers a more convenient dosing schedule compared to standard aciclovir tablets. The typical dosage is 500mg taken twice daily for five days. This medication is converted to aciclovir in the body but achieves better absorption, allowing for less frequent dosing. Valaciclovir 500mg tablets and branded Valtrex are available through EverydayMeds with appropriate prescription.

Topical Treatment Options

Aciclovir 5% cream provides localised treatment applied directly to the affected area. The recommended application is five times daily for four days, with treatment starting at the earliest sign of outbreak. Apply approximately every four hours during waking hours, ensuring the affected area is clean and dry before application. Topical treatments may be preferred for patients who cannot tolerate oral medications.

Timing Considerations

Treatment effectiveness depends significantly on timing. Starting antiviral therapy within the first 24 hours of symptom onset provides optimal results. The characteristic tingling, burning, or itching sensation typically occurs 12-24 hours before visible blisters appear. Patients experiencing recurrent cold sores should keep treatment readily available to begin therapy immediately upon symptom recognition.

Treatment Duration and Frequency

Standard treatment courses last five days for oral medications and four days for topical applications. Completing the full treatment course is essential even if symptoms improve earlier. Patients experiencing frequent outbreaks may benefit from suppressive therapy, requiring different dosing schedules determined by healthcare providers. Never exceed recommended dosages without medical supervision.

Special Considerations

Elderly patients or those with kidney problems may require adjusted dosing schedules. Pregnant or breastfeeding women should consult healthcare providers before starting treatment. Drug interactions may affect dosing, particularly with medications affecting kidney function. Always inform your prescriber about other medications, supplements, or health conditions.

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