A patch base comprises gelatin, polyvinyl alcohol, a methyl acrylate/2-ethylhexyl acrylate copolymer, and L-menthyl glyceryl ether, whereinrelative to the total mass of the base,the content of the gelatin is 1.5 to 6% by mass,the content of the polyvinyl alcohol is 0.5 to 8% by mass, andthe content of the methyl acrylate/2-ethylhexyl acrylate copolymer is 0.5 to 13% by mass.
