Topical chemotherapy or immunotherapy agents (5 fluorouracil cream and Imiquimod cream) use prescription topical creams that are applied to target the cancer cells. 5-FU is a chemotherapy agent that seeks out and destroys the ‘bad’ cells, causing them to scab, crust and heal. Imiquimod cream is an immunotherapy that stimulates the patient’s immune system to react against the cancer cells. The area becomes inflamed, red and scaly until clear.
