Half-summer is poisonous and is not recommended for pregnant women, although it is not clearly indicated that it is contraindicated for pregnant women. Half-summer can be used for coughing and wheezing with excessive phlegm, vomiting and regurgitation, and prunus qi (similar to pharyngeal allodynia). Half-summer, medicinal properties of pungent, warm; toxic. It belongs to the spleen, stomach and lung meridians. It has the effects of drying dampness and resolving phlegm (removing phlegm from the body by drying dampness), lowering the rebelliousness and stopping vomiting (stopping the upward rush of stomach qi and vomiting), and eliminating lumps and dispersing knots. It can be used for treating damp phlegm and cold phlegm, coughing with excessive phlegm, phlegm-drinking palpitations (dizziness and palpitations caused by phlegm-drinking evil), wind-phlegm dizziness, phlegm-convulsive headache (headache caused by phlegm obstructing the qi), vomiting and regurgitation, chest and epigastric constipation and prune nucleus qi; and externally for treating carbuncle, swelling, and phlegm-coughing. The raw product of this medicine should be taken internally with caution, and should be used with caution in cases of yin deficiency and dry phlegm, dry cough, hot phlegm, and blood (non-physiological bleeding disorders), and should not be used in combination with Pseudostemonopsis, Chuanwu, Caowu, Prepared Chuanwu, Prepared Caowu. Please do not use the drug by yourself to avoid adverse reactions. If you feel unwell, please go to the hospital for consultation.