01/02/2022
Hi, some of you have been asking me to explain verrucae, what they are and what can be done about them. Below is an information piece. I hope it comes in useful to those that are interested.
Verrucae (Plantar/Viral Warts)
Verrucae are caused by an infection in the top or outer layer of the skin (epidermis) with a virus called the ‘human papilloma virus’ (HPV). There are many different strains of this virus, and plantar warts are usually due to just a few of these strains. Infection makes the skin over-grow and thicken, leading to a benign wart.
The HPV virus may lay dormant in the body for a long time. Stress and change of circumstances are suspected to have an impact on its activities with regards to warts, so although verrucae are highly contagious, an outbreak may also be triggered for no apparent reason.
Verrucae can appear anywhere on the soles of the feet and the toes. They can range in size from a few mm to a couple of cm. They can be painless, or they can be pretty uncomfortable if present on weight bearing areas of the foot. This is usually as a result of callus build-up on top of the verruca/wart. The black dots are old bleeds caused by tiny burst blood capillaries.
Up to 65% of plantar warts resolve by themselves without any treatment within two years of appearing. Plantar warts that are not causing any adverse symptoms such as pain can be left alone.
Some verrucae can be very stubborn. Treatment does not always work and may be time-consuming and expensive.
Some treatments can be painful, especially when liquid nitrogen/Cryotherapy/Laser therapy is used, and can occasionally cause a blister which, on the sole, can be very uncomfortable.
A foot care professional will recommend the right course of treatment to continue at home. Compliance is key. Maintaining the correct regime for a prolonged time is essential. If callus build up on top of the verruca occurs, then paring by a foot health professional may be neccessary to allow treatment to pe*****te, and reach the verruca.
If occlusion therapy is recommended, then Zinc Oxide tape can be purchased over the counter at the chemist. Duct tape was used in the past but this is not recommended now due to skin allergies and damage. ZO occlusion tape is a safe therapy used for children, pregnant/breast feeding women and vulnerable patients. The tape is applied over the verruca, depriving it of light and air. This will stay in place for six days, remove, soak the foot in warm water and the accumulated hard skin over the verruca is filed down to expose the verruca. Reapply the ZO tape the next morning and repeat. This should take approx two months of continuous application. If the skin covering the verruca becomes hard and thickened, then an appointment with the FHP may be necessary to par with a scalpel.
An alternative treatment offered by the foot health professional might be the application of salicylic acid. There are varying strengths that can be used. A mild acid is available over the counter for home use. Care is required when applying an acid at home as it may burn good skin. The acid is applied in small amounts directly on to the verruca and left to dry once or twice a day. Avoid healthy skin. There is no need for a dressing. Treatment with salicylic acid will take up to, and maybe beyond 12 weeks. Salicylic acid peels the skin away in layers, which removes the wart over time. The acid also irritates the wart area, which encourages the immune system to respond to the virus.
The skin may turn slightly red or dark, which is a normal reaction. People should stop using the product if it causes pain, bleeding, or blisters. If this happens, speak to yor foot care professional for advice and alternative treatment options.
If people use a pumice stone or emery board to file the wart, do not let anyone else use the same item as sharing equipment may help spread the virus.
People should not use salicylic acid or other home treatments if they have diabetes or any circulation or immunity conditions. If people with diabetes try to remove a wart on their feet, it could damage their nerves. There is an alternative therapy. Please speak to your pharmacist.
Salicylic acid may not work for everyone. Different factors can affect the success of wart treatment, such as the thickness of the wart, its location on the body, and individual immune systems.
If you need to make an appointment for professional care or advice, please contact me on 0872481092 or greystonesfootcareclinic@gmail.com