Corn plasters are readily available to buy off the shelves in chemists, supermarkets and even the petrol station. They potentially offer a quick and easy solution to what can be a very painful problem.
BUT buyers of corn plasters beware!
This is what happens to the skin when a corn plaster has been applied to it.
Unfortunately this lady, who is a patient of mine, is on Warfarin, an anticoagulant which thins the blood and delays clotting time. It’s often prescribed to people who are at risk of a stroke or heart attack to thin the blood and make it easier for the heart to pump it round the body.
Let me explain why this could have been a problem:- because Warfarin slows down blood clotting any wound or break in the skin can bleed profusely. Acids like 40% Salicylic (used in corn plasters) can easily break the skin down and cause an open wound or ulcer which can not only bleed but also be a possible entry point for infection.
In the small print on the package (the blue label in the photograph), you can see these corn plasters contain 40% Salicylic acid (which can ‘burn’ the skin quite severely). There is a caution not to use the plasters if you are allergic, diabetic or have severe circulatory problems, but no direct mention of Warfarin or anticoagulant drugs.
In the picture you can see that in this case, the acid has spread across the healthy skin next to the corn causing quite severe blistering and skin peeling. This lady had used this potent acid on her skin in good faith as the instructions did not mention Warfarin being a problem.
So please be careful if you are thinking of buying corn plasters to treat your corn at home. If you are in any doubt what so ever please (please) pick up the phone and call me. I’ll be happy to provide free advice over the phone.
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