Acupoint pressure stimulation plaster - Tongbian plaster is a kind of external patch composed of Chinese patent medicine. Its main ingredients are cinnamon, asarum, dried ginger, muggle leaves, angelica dahurica, borneol and other pure Chinese herbs. This medicine mainly treats constipation related diseases by sticking the navel position outside. It is used to relieve patients with difficult or difficult defecation, few or no defecation times, hard or nodular stool, abdominal pain and other related symptoms during defecation.