Understanding Cold Sores and Treatment Options
What Causes Cold Sores in the Mouth?
Cold sores are caused by the herpes simplex virus type 1 (HSV-1), which remains dormant in nerve cells after initial infection. Various triggers may activate the virus, including stress, illness, sun exposure, hormonal changes, or immune system suppression. Once activated, the virus travels along nerve pathways to the skin surface, typically around the mouth and lips.
Recognising the Stages of Cold Sore Development
Cold sores progress through distinct stages over 7-10 days. The initial tingling stage occurs 1-2 days before visible symptoms appear. This is followed by the blister stage, where small fluid-filled lesions form on or around the lips. The weeping stage occurs when blisters burst, making this the most contagious period. Finally, crusting and healing stages complete the cycle as scabs form and gradually heal.
Antiviral Treatment Options
Prescription antiviral medications like aciclovir tablets may help reduce the severity and duration of cold sore outbreaks when taken early. Aciclovir 400mg tablets work by preventing viral replication, potentially shortening healing time by 1-2 days. EverydayMeds offers various antiviral treatments including aciclovir tablets and topical creams. Alternative antivirals such as valaciclovir may also be prescribed for recurrent outbreaks.
Managing Symptoms and Preventing Spread
Pain relief may be achieved through over-the-counter analgesics or topical treatments. Keep the affected area clean and dry, avoiding touching or picking at lesions. Use separate towels, utensils, and personal items to prevent transmission. Cold sores are most contagious during the weeping stage but can spread from the first tingling sensation until completely healed.
When to Seek Medical Advice
Consult a healthcare provider if cold sores are severe, frequent (more than 6 outbreaks per year), or if you have a compromised immune system. Prescription antivirals may be recommended for suppressive therapy in cases of frequent recurrence. EverydayMeds provides convenient access to prescription cold sore treatments through our online consultation service.






