The flat warts on the back of the hand are benign superfluous organisms produced by the infection of the skin mucosa of the patient’s hand by the human papilloma virus. The actual fact is that you can find a lot of people who are not able to get a good deal on a lot of things. The actual choice of drugs can be consulted with a professional physician after use; 2, injectable drugs: injectable drugs are divided into two categories, including skin lesion injection and intramuscular injection, skin lesion injection drugs including vitamin D3 skin lesion injection, polymyxin skin lesion injection, etc. Intramuscular injections include BCG polysaccharide nucleic acid injection, thymidine injection, etc. Second, physical therapy: For patients who do not have obvious effect of drug treatment or have the need to eliminate the symptoms quickly, they can choose carbon dioxide laser, liquid nitrogen freezing, microwave therapy and other physical therapy to eliminate under the guidance of doctors. However, this type of modality will be accompanied by pain during treatment and is more dangerous than drug treatment.