People with yin deficiency and dry cough should take it with caution. There are also some contraindications: for example, pregnant and lactating women also need to take it with caution. They are also not allowed to eat cold, cold, spicy and greasy food, so they should be taken after Use under the guidance of professional Chinese medicine practitioners.

Patients with excess heat syndrome cannot take aster. There are currently no clear adverse reactions. This medicine is available in both decoction and pill form. Aster requires medical guidance and is not self-medication. Note that people who are allergic to this product are prohibited from using it. People with allergies need to take it with caution. People with yin deficiency and dry cough should take it with caution. If you need to use this product, you should do it under the guidance of a doctor's syndrome differentiation. Do not use the medicine blindly on your own to avoid adverse reactions.

The functions and effects of aster are to moisten the lungs and lower qi (moisturize the lungs and reduce the rising lung qi), resolve phlegm and relieve coughs. Use with caution for those with yin deficiency and dry cough. It is taboo to eat cold, cold, spicy and greasy food. This medicine is pungent, warm and non-drying, good at moistening the lungs and lowering the qi (moisturizing the lungs to reduce the ascending lung qi), and is pungent to relieve lung stagnation, resolve phlegm and relieve cough. It can be used to treat coughs regardless of external factors, internal injuries, cold, heat, deficiency or excess. It is most suitable for patients with lung qi congestion and cough with phlegm. When using this medicine, it should be used raw for coughs caused by external injuries, and it should be used for broiled coughs caused by internal injuries. Dialectical treatment is required when using Chinese medicinal materials.