Cantharone and Cantharone Plus Wart Removers
For Dermatology Patients
How Cantharone and Cantharone Plus work
Within 24 hours after the drug is put on the wart, a blister forms under the wart. Sometimes,
there may be some blood in the blister fluid. Don’t be alarmed at this. The blister may be
painful, red, and itch. The area may have watery drainage, redness, and puffiness for 24 hours.
What you can expect
As a rule, you can expect:
4 hours: Mild discomfort may occur; control with bathing and medicine (Tylenol or
ibuprofen, as instructed on the package).
4 – 24 hours: Blister may develop.
4 days: Crusted blisters fall off leaving shallow holes. Open sores should be washed
every day. Bacitracin or Polysporin and a Band-Aid should be put on the
7 – 14 days: Healed with some inflammation or redness still there. It will go away on its own.
Any warts that remain will be treated again by your doctor at your next visit.
Your skin may lose its color at that spot for a short time, but the treatment will not
leave a scar, unless it becomes infected or traumatized.
Information about warts
Warts are skin growths caused by viruses. Warts can grow on any part of the body. What they
look like depends on where they are. Although they don’t spread easily, wart viruses can be
passed to others by contact with another person. Wart viruses can also be spread in such places
as locker rooms and public showers by indirect contact. They can also spread on the same
person by picking, scratching, etc. Warts are sometimes easy to live with, but they look bad and
are painful, especially on the feet. Warts may bleed if they are injured.
You were treated with Cantharone (regular) or Cantharone Plus
Next appointment date ____________________________________________
If you have any questions or concerns call the Dermatology Clinic where you were seen.
UW Clinics East Dermatology
5249 East Terrace Drive
Madison WI 53718
fax: (608) 265-1249
UW Clinics West Dermatology
451 Junction Road
Madison WI 53717
fax: (608) 265-7759
Your health care team may have given you this information as part of your care. If so, please use it and call if you
have any questions. If this information was not given to you as part of your care, please check with your doctor. This
is not medical advice. This is not to be used for diagnosis or treatment of any medical condition. Because each
person’s health needs are different, you should talk with your doctor or others on your health care team when using
this information. If you have an emergency, please call 911. Copyright ©10/2015. University of Wisconsin Hospitals
and Clinics Authority. All rights reserved. Produced by the Department of Nursing. HF#5798.