An improved band-aid or bandage comprises a dry or dried medicament or medicinal substance in a gauze pad, medical dressing, or pouch. The gauze pad, medical dressing, or pouch is attached to a person's body with an attachment means that has an aperture therethrough, the aperture located adjacent the gauze pad, medical dressing, or pouch. A user can attach the band-aid or bandage to a body and then pass water or another liquid through the aperture to wet the dry or dried medicament or medicinal substance. Once wetted, the medicament or medicinal substance can then suffuse out of the gauze pad, medical dressing, or pouch and onto the part of the body to which it is adjacent, thereby obtaining a desired effect on the body. A method of delivering a medicament or medicinal substance comprises the steps of disposing a dry or dried medicament or medicinal substance in a gauze pad, medical dressing, or pouch; affixing the gauze pad, medical dressing, or pouch to an attachment means for attaching it to a body; attaching the gauze pad, medical dressing, or pouch to a body; and wetting the pouch with an amount of liquid sufficient to wet the dry or dried medicament or medicinal substance.