Usage of Dried Perilla Leaves: It can be used as medicine, or taken in water; or used with fish and crab, it can make the fish and crab more flavorful and detoxify the fish and crab. Dried Perilla leaves are warm in nature, pungent in flavor, and belong to the lung and spleen meridians. The basic effects of this product are to dispel cold (removing cold from the muscle surface), move Qi and harmonize the stomach, and detoxify fish and crab. It is suitable for people with external wind-cold infection and internal qi stagnation, symptoms include malignant cold and fever, headache and nasal congestion, with cough and phlegm, chest tightness, nausea and vomiting; qi stagnation in pregnancy, fetal restlessness, as well as abdominal pain and vomiting and diarrhea due to fish and crab consumption. The adverse reactions and contraindications of dried perilla leaves are not clear. This product should not be decocted for a long time, and should not be taken by people with warm diseases and weak qi. If you need to use the medicine, you should consult a professional doctor first and use it under the doctor’s guidance, do not blindly self-medication.