Antiviral Treatment Options for Cold Sores
Understanding Cold Sore Outbreaks
Cold sores are caused by herpes simplex virus type 1 (HSV-1), which affects up to 70% of the UK population. Once infected, the virus remains dormant in nerve cells and can reactivate during times of stress, illness, or immune system weakness. Recognising the early warning signs - typically a tingling or burning sensation around the lips - is crucial for effective outbreak management.
Antiviral Medications
Prescription antivirals like aciclovir tablets work by preventing the virus from replicating, potentially reducing outbreak severity and duration when started early. EverydayMeds stocks aciclovir 400mg tablets and valaciclovir 500mg tablets, which may be prescribed for recurrent episodes. Topical aciclovir 5% cream is also available for localised treatment. These medications are most effective when taken within 24-48 hours of symptom onset.
Practical Management Strategies
During an active outbreak, maintain good hygiene by washing hands frequently and avoiding touching the affected area. Replace toothbrushes after outbreaks to prevent reinfection. Cold compresses may help reduce pain and swelling, whilst avoiding spicy or acidic foods can prevent additional irritation. Keep lips moisturised with antiviral creams or protective balms.
Prevention and Trigger Management
Common triggers include sun exposure, stress, fatigue, and minor injuries to the lip area. Using lip balm with SPF 15 or higher can help prevent UV-triggered outbreaks. Maintaining good immune system health through adequate sleep, stress management, and proper nutrition may help reduce outbreak frequency.






