20/02/2025
Verrucas - What are they and how do we treat them?
Verrucas are usually small, circular areas of white skin, characterised by small black dots, that appear on the sole of the foot. They can appear as raised ‘lumps’ or can be flat in appearance. They can also appear between the toes, and less commonly on the top of the foot. They can be painful and can easily spread to cover large areas of the foot.
So how did I get a verruca?
Verrucas are caused by a viral infection known as HPV (Human Papilloma Virus). It is transferred to the body via skin-to-skin contact. Wet, soft, ulcerated or sore skin areas are more likely to develop verrucas.
This means the most common places to pick up a verruca are swimming pools or communal baths, showers and changing rooms (anywhere damp you might walk barefoot). Essentially, a verruca is passed on to you from another person. You are more likely to develop verrucas if you are immuno-suppressed (for example taking certain medications or having an existing condition that affects your immune system). A person who is immuno-suppressed might also struggle to successfully treat a verruca.
What happens if I just leave my verruca?
A few things could happen if you were to just leave a verruca alone without treating it.
1: Your body’s immune system eventually recognises the verruca (this could take many years) and removes it.
2: Verrucas usually form over weight-bearing areas of the foot (forefoot and heels are most common). Because of this, you could develop a build up of callus over the area, which could become uncomfortable to walk on.
3: The verruca could develop or spread to other areas of the foot, making it harder to treat the viral infection. This is known as a ‘cluster’ or ‘mosaic’ verruca.
How can I treat my verruca?
Firstly, you should consult a podiatrist to make sure that the lesion in question is in fact a verruca. Treating verrucas are generally low-risk, however applying these treatments to a lesion that is not a verruca, could have serious consequences. Once the verruca is diagnosed, there are multiple treatments available, all with varying levels of effectiveness. Generally, the aim of treatment is to get your body’s immune system to recognise the HPV viral infection inside of you and to essentially ‘kill it’. This can be a tricky task as our immune systems do not recognise viral infections easily.
Treatment will usually begin with ‘debridement’ of the area - removing overlying calloused skin or verruca tissue with a scalpel blade. Then, at J&L Health, we provide the following treatments:
Cryotherapy: The verruca is ‘frozen’ using nitrous oxide with a high-powered cryo gun. The cold temperature aims to kill the surrounding skin cells and the verruca tissue with it.The amount of time taken to freeze the area will vary depending on its size and location, with larger lesions requiring more treatment.
Salicylic Acid 60%: A topical solution of salicylic acid is applied to the verruca site. Salicylic acid breaks down and softens dead skin cells/verruca tissue, making it easier to remove. The acid will be applied and kept on the skin via a dressing for up to 4 days to get the best effects.
Verruca Needling: Verruca needling is a minor surgical procedure involving a local anesthetic injection. Needling is the use of a needle to pierce the verrucae lesions to create a cellular response at the site of the verruca. When there are multiple lesions the primary and largest are targeted.The area is cleansed and a sterile needle is used to pierce the verruca. This is repeated over and over to the lesion. Once completed a light dressing is applied with a deflective pad which needs to remain in place and dry for 24hours.
Electrosurgery: Electrosurgery involves the excision of verrucas or corns on the foot. You may need to undergo surgery when you have not responded to conservative methods of treatment. Electrosurgery involves holding a small probe which gives out an electric current against the verruca, causing it to dry out. The dry tissue is then easily removed with a scalpel. By carrying out this treatment, more of the corn or verruca can be removed than it would be with a standard treatment. A small wound below the corn or verruca is created, which normally heals within a few weeks. This procedure is performed under a local anaesthetic.
If you think you are struggling with a verruca, then please book an appointment with us either via our website or by calling 01483 425437.