Ganoderma lucidum in water as tea has some effect, but its active ingredient precipitation is limited, generally does not achieve the therapeutic effect. Ganoderma lucidum is sweet in flavor and flat in nature; it belongs to the heart, lung, liver and kidney meridians. It has the effects of tonifying qi and tranquilizing the mind, relieving cough and calming asthma (stopping cough and calming wheezing). It is used for restlessness of the heart and mind, insomnia and palpitation (rapid heartbeat, often accompanied by panic), cough and wheezing due to lung deficiency, shortness of breath due to deficiency labor, and inability to think about food and drink. It is contraindicated in solid cases and those with the first signs of external aggression. Ganoderma lucidum is a strong inhibitor of platelet aggregation, so it should be used with caution in people with bleeding disorders and bleeding tendency. Allergy sufferers should be cautious. If you feel unwell after drinking ganoderma lucidum in water, it is recommended that you stop using it and seek medical advice promptly.