An applicator includes: a liquid medicine container (130) having an opening (124), and a brush member (160) arranged adjacently to the liquid medicine container (130) to cover the opening (124). The brush member is made up of a plurality of fibers (140) that are bundled together. The brush member (160) has a tubular shape in a root portion located adjacently to the liquid medicine container (130), tapers from the root portion toward a top end portion located opposite to the liquid medicine container (130), and has a wedge shape in the top end portion,