Cold Sores
The cold sore virus is very common and is carried by up to 80% of the population. It is caused by a virus called ‘herpes
simplex’ (HSV). Cold sores are highly infectious and capable of spreading to other parts of the body. Once you have been infected,
the virus lies dormant in the nerves that supply feeling to the face and mouth. The virus can subsequently be reactivated, and it
is the reactivation that presents as cold sores on the lips.
Triggers
It is important in managing this condition to identify what triggers
an outbreak of cold sores. Most cold sore sufferers can identify everyday events that cause the reactivation of the virus and lead
to the development of a cold sore. These triggers can vary between individuals, for example, where one person is more affected by
the cold, another sufferer may be more susceptible to sunlight. Identifying the trigger is the first step to take towards managing
cold sores.
Common trigger factors include:-
The cold sore cycle
There are five different stages:
Tingle:
This stage normally lasts between
a few hours and a day. The cold sore is ‘invisible’ at this stage but a tingling or burning sensation may be felt. If an antiviral
cream (aciclovir) is applied at this stage it may prevent the visible signs of the cold sore from appearing. Aciclovir attacks the
virus and stops it from multiplying.
Blister:
This stage is characterised by a small group of painful, fluid-filled blisters.
These are normally seen on the second day of the cold sore cycle. Here again, treatment with an antiviral cream will reduce the life
of the cold sore.
Ulcer:
Once the small blisters have burst, a weeping ulcer is seen that may last for several days. This
stage is also very painful. The clear liquid that is released from the ulcer contains a high number of viral particles and as such
is highly contagious.
Scab:
After about 4 days a thin scab will form, acting as a protective covering for the new skin that is
forming beneath. The skin around the scab may dry and crack and even bleed. Moisturising the area will help to reduce this. The scab
may also be itchy, but is not contagious at this stage.
Healing:
After 9 - 12 days the cold sore will have healed. A slightly
red/pink area of skin will remain but will quickly fade. Most people who get cold sores will usually experience around 2 - 3 attacks
per year although some people may get as many as 12.
Reduce the risk of spreading the virus
Once infected, the virus cannot be removed. There are medicines available to treat the first episode of infection and
to treat recurring cold sores. These are a few key points to remember when treating cold sores:
Treat the cold sore as soon as it starts
developing (the tingle stage) as this can reduce the duration of the cold sore by up to 50%.
It is never too late to start treating
a cold sore as even during the blister stage, antiviral creams are effective.
An untreated cold sore will usually last between nine
and eleven days.
Treatment with an antiviral cream will also help prevent the spread of the virus.
Treating the first infection
For
an adult or child over two years old with a first infection, tablets from your dentist or doctor can be taken five times a day for
five days.
Treating recurring cold sores
To treat recurring cold sores, antiviral cream can be applied five times a day
for five days beginning as soon as the tingling sensation begins, or as soon as the cold sore appears on the lip. The cream can be
bought from a pharmacy, but the tablets must be prescribed by a dentist or a doctor.
For further help and advice regarding cold sores,
please telephone the Cold Sore Information Bureau (CSIB) 0845 603 0052 or visit their website www.csib.co.uk .