Mugwort should refer to mugwort leaves, which can be used by children with indications for the use of mugwort leaves, and cannot be applied by children without indications. Mugwort has the efficacy of warming menstruation and stopping bleeding, dispersing cold and relieving pain, and it can be used externally to dispel dampness and relieve itching. So if the child has itchy skin or eczema, you can choose to use moxa leaves decoction water fumigation to relieve the itching symptoms of eczema; if the child has symptoms such as spleen and stomach cold, you can also apply moxa leaves for treatment. Because of the warm nature of moxa leaves, it is not recommended to apply moxa leaves to avoid aggravating the original condition if the child is suffering from yin deficiency, blood-heat syndrome or damp-heat syndrome. Adverse effects are not known. The use of moxa leaves must be under the guidance of a professional physician, so as not to blindly use the drug, resulting in adverse consequences.