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Herpetic whitlow (whitlow finger) is a painful infection of the finger caused by the herpes virus. It's easily treated but can come back.
Herpetic whitlow can appear anywhere on your finger or thumb, but it usually affects the top of your finger (fingertip).
Symptoms of herpetic whitlow include:
Treatment is more effective if started early and will help stop the infection spreading.
You may be prescribed antiviral tablets if you see a GP within 48 hours of your symptoms showing.
Antiviral tablets can help your finger to heal more quickly.
If you cannot see a GP within 48 hours, the infection will usually go away without treatment within 2 to 3 weeks.
You can ease the symptoms of herpetic whitlow yourself by taking painkillers and avoiding touching the infected finger.
keep the affected finger clean and covered with a dressing
take painkillers, such as paracetamol or ibuprofen, to ease the pain
try to discourage children with a whitlow from sucking their thumb
do not touch the infected finger
do not touch other people with your infected finger to avoid spreading the infection
do not try to drain the fluid by squeezing the affected area
do not touch other areas of your body with the infected finger, particularly your eyes – if you wear contact lenses, use the hand that's not affected to put them in and take them out, or wear glasses until the infection has healed
Herpetic whitlow is caused by a virus called herpes simplex. You can get it if you touch a cold sore or blister of another infected person.
You're more likely to get herpetic whitlow if you've had cold sores or genital herpes.
You may also get it if you have a weakened immune system – for example, if you have diabetes or you're having chemotherapy.
The first time you have herpetic whitlow will usually be the most severe.
Once you have the herpes virus, it stays in your body for the rest of your life, so if you get herpetic whitlow once you can get it again.
For example, it might come back if you have a cut or sore on your finger, or if you're feeling stressed or unwell.
There's not much you can do to prevent herpetic whitlow but it can be treated in the same way if it comes back.
