The first thing you need to do is to get rid of the warts, and you can do it with the help of a good doctor. 1. Flat warts are localized proliferative skin diseases caused by human papillomavirus infection, manifested as slightly elevated flat papules on the skin surface, varying in size, occurring in the face, back of the hand and other exposed parts. 2. Imiquimod does not have a direct antiviral effect, but can induce cytokines in the body, activate immune cells, to achieve the effect of antiviral, can be applied directly to the affected area, enough to eliminate the local warts. Fluorouracil can effectively inhibit cell division and proliferation, appropriate amount of coated in the affected area, can effectively inhibit the replication of viruses, so as to achieve the effect of warts off. The two have a certain effect on the flat warts.