1, the growth environment is affected: rainstorm will change the growth environment of Cuscuta chinensis, such as soil moisture, sunlight and temperature. If the rainstorm is too serious, it will have a negative impact on the growth and development of Cuscuta chinensis.

2. Picking is restricted: If the rainstorm changes the growth environment of Cuscuta chinensis, it will affect the picking and quality of Cuscuta chinensis. For example, excessively moist soil will lead to the change of nutrient composition and quality decline of Cuscuta chinensis, thus affecting the quality and efficacy of medicinal materials.

3. Price fluctuation: If the yield of Cuscuta chinensis is affected and the relationship between supply and demand changes, the price of Cuscuta chinensis will fluctuate and adjust. If the rainstorm affects the picking and quality of dodder, it will also affect the market demand and price of dodder.