Mica has the efficacy and effect of benefiting the lungs, calming asthma, suppressing fright, stopping bleeding and astringing sores. Mica is also known as white mica, mica stone, silver essence stone. It is sweet in flavor and warm in nature; it enters the heart, lung and spleen meridians. It is mainly used for the treatment of asthma, dizziness, insomnia, epilepsy, hemoptysis, vomiting blood, prolonged dysentery, carbuncle (a kind of poisonous sores, occurring on the surface of the body, limbs, internal organs of the acute suppurative disease) sores, traumatic bleeding and so on. Mica is often decocted and taken in soup; or used in pills and powder, or powdered and applied. The adverse reactions and contraindications of mica are not clear, such as the simultaneous use of other drugs may occur drug interactions, please consult your physician or pharmacist for details. If you need to use mica, must be used under professional medical supervision.