Pitomod granules are immunomodulators and can be used in conjunction with the treatment of flat warts. Flat warts are caused by human papillomavirus infection and can be treated with immunomodulators. Pitomod, transfer factor or BCG polysaccharide nucleic acid can be used to treat flat warts, but it is best to use topical medications together, such as topical retinoic acid cream with imiquimod gel for treatment. The actual warts on the face should be avoided to avoid picking and scratching, so as to avoid inoculation on the normal skin.