Cold sores are caused by the herpes simplex virus and they can be treated with antiviral medication.
Aciclovir tablets help heal the sores faster and are particularly effective when taken as soon as the first symptoms appear.
Aciclovir is also prescribed as a suppression treatment for people who encounter frequently recurring bouts of oral herpes.
If you need treatment for genital herpes, visit our genital herpes service.
If you wish to confirm whether you are a carrier of herpes, order a test online now.
Using a home test works in the following steps:
In some cases, the doctor may need to ask for more information. They may contact you by phone, so make sure your telephone number is up to date in your online account.
Please note, where a generic product has been ordered we may use a range of manufacturers in order to provide you with your medication, in order to maintain our service levels.
Last reviewed: 26/1/2020 by Dr Simran Deo
|One course of Aciclovir - for a cold sore outbreak||(400mg, 15 tablets)||£20|
|Two courses of Aciclovir - for cold sore outbreaks||(400mg, 30 tablets)||£25|
|Three courses of Aciclovir - for cold sore outbreak||(400mg, 45 tablets)||£30|
|Aciclovir - for suppressive treatment of recurrent cold sores||3 months (400mg, 168 tablets)||£49|
|Cold sore test kit||1 test kit||£80|
Dispensing and standard delivery included.
Next Day Delivery: £3.99
Common side effects from aciclovir can include:
Cold sore healing can also be improved with hydrocolloid dressings (Compeed invisible cold sore patches) available in most pharmacies. Local anaesthetic creams applied to the blisters and oral painkillers such as paracetamol can ease any discomfort of the blisters.
Without treatment, cold sores usually heal within 7 - 10 days.
If you want to discuss your cold sores with a doctor, you can book a telephone consultation. Our doctors will be able to offer personalised advice.
Cold sores are blisters which occur around the mouth and on the lips. They are caused by two types of the herpes virus which also cause genital herpes (herpes simplex 1 & 2). Infection with the herpes simplex virus is extremely common and it is assumed that most adults carry it. In fact, it is estimated that 90% of the population worldwide carry one of the two types of herpes simplex.
Most people who suffer from cold sores experience the first one during their childhood, often transmitted by close contact with family or friends with the virus, or by kissing in the teenage years. The herpes virus cannot be cured but this does not mean that you will forever be dealing with herpes symptoms - it just means that the virus remains inactive in your body and that it may cause outbreaks in the future. Most patients who suffer from recurring bouts notice that there are certain triggers which bring the symptoms back.
Cold sores develop in different stages:
Cold sores tend to come back when your immune system is weakened. Looking after your health will help you avoid recurrent bouts. Everyone is different and you will need to observe your symptoms to identify the herpes triggers which affect you. Common trigger for cold sores include:
Once you have figured out what your cold sore triggers are you will find it easier to avoid outbreaks.