Chrysanthemum, Ophiopogon japonicus, wolfberry, Fritillaria fritillary. However, this formula is more suitable for hot cough with phlegm. For cold cough, Fritillaria fritillary is not suitable. Fritillary fritillary can be prepared in traditional Chinese medicine pharmacies. For tea, grind it into powder, about 10 grams each time, and for children, 2 to 3 grams. I tried it, it works great.