This coating tool is provided with: a liquid medicine container (130) having an opening (124)； and a brush member (160) disposed adjacent to the liquid medicine container (130) so as to cover the opening (124) and configured such that a plurality of fibers (140) are bundled.. The brush member (160) has a tubular shape at a root part on the liquid medicine container (130) side, and a tip part of the brush member has a wedge shape that becomes thinner from the root part toward the tip part on the side opposite the liquid medicine container (130) side.
