Magnetism can lower yang, soothe the nerves, improve eyesight and ears, and relieve asthma. It is easier to decoct effective components after calcination, and strengthen the function of calming the liver and suppressing yang.

Suggestion: decoct with water as much as possible, and then drink the liquid medicine after decocting, so that it is easy to absorb the drug effect without affecting the stomach. If the medicine is not so good, the magnet cannot be completely decomposed, which will increase the burden on the gastrointestinal tract.