Flat warts are not a sexually transmitted disease, they are a skin condition caused by human papillomavirus infection and are usually self-transmitted and rarely spread from person to person. Treatment for flat warts includes freezing, ionized cauterization, or oral and topical medications. Freezing involves the application of liquid nitrogen to dislodge the warts, and plasma cauterization is a treatment option that cauterizes the warts through plasma techniques to dislodge them. For oral as well as topical medications, recombinant human interferon alpha-2b ointment, retinoic acid ointment, or tazarotene cream can be used topically. Oral medication, you can take transfer factor or mushroom polysaccharide tablets to improve immunity, but also oral Chinese medicine treatment, including amaranth, red peony, wood sorrel, fragrant herbs and other traditional Chinese medicine, decoction of water to take orally.