The application provides a
functional monomer shown in formula (I), a preparation method thereof, a gel prepared from the
functional monomer, a gel dressing and application of the gel dressing. The application uses
polyvinyl alcohol,
polyglutamic acid and
acrylic acid as gel raw materials, adds
sodium chloride as an effective component, adds initiators and crosslinking agents, grafts a compound shown in formula (I) containing a
disulfide bond, forms an interpenetrating gel network, and the prepared gel dressing can be quickly attached to the
skin and can be easily and completely removed from the
skin surface. The gel dressing solves the problem of poor
patient compliance, and the gel dressing can be attached to the
common warts when used, which is simple and convenient, does not contain preservatives, is completely non-toxic and non-
side effect to the
human body, and is safe and reliable. Experimental results show that the gel dressing provided by the application can be quickly attached to the
skin and form stable adhesion, and can be easily and completely separated from the skin under the action of
sodium bicarbonate and
glutathione after the warts disappear.