imiquimod

Imiquimod (INN, marketed by 3M under the trade name Aldara) is a prescription medication that acts as an immune response modifier.
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Imiquimod /im·i·quim·od/ a biologic response modifier used topically in the treatment of condyloma acuminatum. [more]Imiquimod - Community and Resources

A substance that improves the body's natural response to infection and disease. It is being studied as a topical agent (something used on the surface of the body) for the prevention of some types of cancer. It belongs to the family of drugs called biological response modifiers.