How Do You Use Cantharidin

Cantharidin is a vesicant

How long do you leave cantharidin on?

Cantharidin (formulated with substances that create an oily or colloidal film) is accurately applied to the wart or molluscum. The liquid is allowed to dry and then covered and sealed with nonporous tape for 4–6 hours. The tape should then be removed and the area washed with soap and water.

What happens if you don't wash off cantharidin?

If your child becomes unreasonably uncomfortable the tape may be removed sooner than 8 hours, however results of the treatment may be less than expected at this time. apologize. 3. If you do not remove the tape and chemical at the 8 hour point further blistering will occur which could lead to scaring.