What are the contraindications to eating cinnamon

Gui Yuan, or longan meat, is a Chinese medicine whose contraindication is that it is contraindicated for those who have phlegm and fire or dampness stagnation and stagnation (water stays in the body).
Longan meat is the aril of longan, a plant of the family Sapindaceae, with a sweet taste, warm nature, and belongs to the heart and spleen meridians, and has the effects of tonifying the heart and spleen (tonifying the heart and spleen with tonic-type medicines), nourishing the blood and tranquilizing the mind (stabilizing the mind and soothing the emotions by nourishing the blood). It is mainly used in the treatment of overthinking, straining the heart and mind, palpitation and palpitations (violent heartbeat, panic and restlessness), insomnia and forgetfulness.
The adverse effects of Longan Meat are not known. Note that the use of this product is prohibited for those who are allergic to this product, allergy should be taken with caution, with phlegm fire or dampness stagnation stop drinking people should not take.
If you need to use this product, you should be under the guidance of a physician to identify the evidence, do not blindly use your own medication, so as not to cause adverse reactions.