Cordyceps militaris flower is a common Chinese medicinal material with a variety of effects, as follows:

1. Tonify the kidneys and strengthen yang: Cordyceps militaris flower is considered to be a good medicine for tonifying the kidneys and strengthening yang. It can treat male reproductive system problems such as kidney deficiency and impotence.

2. Nourish blood and moisturize dryness: Cordyceps militaris flower can also nourish blood and moisturize dryness, which is suitable for malnutrition, chronic illness and frailty, postpartum blood loss, etc.

3. Improve liver and kidney function: Cordyceps flower can also improve liver and kidney function, and is suitable for kidney deficiency edema, liver and kidney yin deficiency, etc.

4. Other effects: Cordyceps flower also has some other effects, such as improving anemia and promoting wound healing.

However, Cordyceps militaris flower also has some taboos, as follows:

1. Contraindicated for pregnant women: Cordyceps militaris flower has the effect of exciting the uterus, so it is prohibited for pregnant women to prevent any impact on the embryo.

2. Contraindicated for patients with high blood pressure and heart disease: Cordyceps flower can accelerate the heart rate and constrict blood vessels, which may cause other health problems for patients with high blood pressure and heart disease.

3. Contraindicated for patients with qi deficiency: Cordyceps flower has a warming and tonic effect, and may cause discomfort to people with qi deficiency.

4. Contraindicated for patients with refractory constipation: Cordyceps flower can improve gastrointestinal motility, but for patients with refractory constipation, it may cause diarrhea and other adverse reactions.

In short, before using cordyceps flowers, you should first understand your physical condition to ensure that it will not cause harm to your health.