Dang Guihua is a kind of osmanthus, general contact or consumption is non-toxic and will not cause toxic reactions in human body. However, for people with allergies, it is recommended to avoid contact to avoid allergic diseases, such as allergic dermatitis, allergic rhinitis, allergic enteritis, etc. 1.Allergic dermatitis: a kind of skin metamorphosis caused by contact with allergens, pollen is a common allergen, some people may cause local erythema, blister, papule, skin itching, scratching and easy to appear vesicles, ooze, crust, etc, Crusting, etc. This situation is not the poisoning performance caused by the poisonous flowers, but the performance of allergic dermatitis; 2, allergic rhinitis: the chronic inflammatory reaction disease of nasal mucosa caused by contact with allergens, often manifested as nasal congestion, runny nose, sneezing constantly, insensitive sense of smell and other symptoms. If the above symptoms occur when smelling Tanqueray flowers in life, consider whether Tanqueray is allergic, rather than a toxic reaction. Generally recurring, more obvious when the season changes, the symptoms are sometimes light and sometimes heavy, most of them can heal themselves; 3, allergic enteritis: consumption of a certain food caused by the digestive system of metabolic reactions, children are more common, the main performance of diarrhea, vomiting, abdominal pain and other symptoms, some can also appear fever. Danggui flower is mainly used as a spice. If the above symptoms occur after consuming Danggui flower, then consider allergic enteritis caused by Danggui flower. It is more likely to be an allergic reaction after contacting or consuming dianthus. The main treatment is anti-allergic treatment, taking anti-allergic drugs such as loratadine tablets and cetirizine hydrochloride tablets.