In order to provide an elastic medical tape having an especially excellent elastic function and a high effect of alleviating persistent skin irritation during application duration caused by an application-duration shrink force, and applicable to skin that hypersensitively reacts to even insignificant irritation, disclosed is a medical tape for alleviating persistent skin irritation during application duration caused by an application-duration shrink force of an elastic base member of an elastic medical tape, the medical tape including: an elastic base member portion (1) having an elastic function; an adhesive portion (2) having a function of applying and holding the elastic base member portion (1) to skin; and an anti-expansion portion (3) having a function of preventing expansion of the elastic base member portion, the anti-expansion portion (3) overlying the elastic base member portion (1), wherein, after in a manufacturing process, the elastic base member portion (1) and the anti-expansion portion (3) are laminated while the elastic base member portion is in a slacked state or in a not-pulled state, and in the manufacturing process, the elastic base member portion (1) and the anti-expansion portion (3) are laminated while a residual shrink force is not generated in the elastic base member portion (1) in order to reduce the residual shrink force of the elastic base member portion (1), the adhesive portion (2) is applied to skin while preventing expansion of the medical tape, and the anti-expansion portion (3) is then removed.