1. Both chrysanthemum and cassia seed have the function of clearing away heat and toxic materials, which is beneficial to eliminate toxins and calories in the body and improve physical fitness.

2. moisten the lungs and improve your eyesight. Both chrysanthemum and cassia seed have the effects of moistening the lungs and improving eyesight, which is helpful to relieve visual fatigue and dry eyes.

3. Lower blood pressure. Chrysanthemum and cassia seed also have a certain antihypertensive effect, which is helpful to control hypertension.

As for whether you can drink chrysanthemum cassia seed tea during menstruation, it is generally possible, but you need to pay attention to the following points:

1. If you have problems such as irregular menstruation and dysmenorrhea, it is recommended to consult a doctor before drinking.

2. It is recommended not to drink when the menstrual flow is large, so as not to affect the blood circulation of the body.

3. If you find that you have adverse reactions after drinking chrysanthemum cassia seed tea, you can stop drinking or consult a doctor.