1. People with high blood sugar: Chrysanthemum and Lycium barbarum contain certain sugar, which is not suitable for diabetics with poor blood sugar control or people with high blood sugar.

2. Deficiency of spleen and stomach: Chrysanthemum and medlar are cold foods. For those with spleen and stomach deficiency and cold, excessive intake may cause abdominal pain and diarrhea.

3. Menstrual women: Chrysanthemum medlar belongs to herbal tea. Excessive intake during menstruation may cause blood stasis and even induce dysmenorrhea symptoms.

Lycium barbarum chrysanthemum tea is generally safe, but the following people need to pay attention:

1. Pregnant and lactating women: Pregnant and lactating women should consult a doctor before drinking Lycium barbarum chrysanthemum tea.

2. People in drug therapy: People who take drugs for a long time should drink this kind of tea under the advice of doctors.

3. People with deficiency-cold constitution: Lycium barbarum chrysanthemum tea has a certain cooling effect, and people with deficiency-cold constitution should avoid excessive drinking to avoid aggravating physical discomfort.

4. People who are allergic to medlar and chrysanthemum: People who are allergic to medlar and chrysanthemum should avoid drinking.

5. Diabetics: Because both Lycium barbarum and Chrysanthemum contain a certain amount of sugar, diabetics should control their drinking amount under the advice of doctors.

In short, if you belong to any of the above groups, please consult a doctor before drinking Lycium barbarum chrysanthemum tea.