It is generally recommended to take cold medicine after eating persimmons for about 1-2 hours to avoid reaction with the medicine and affect its effectiveness. Persimmon is rich in nutrition, but some of the nutrients contained in it may affect the absorption of the drug, so patients consume persimmon 1-2 hours before taking cold medicine to facilitate the absorption of the drug, and can reduce the stimulation of the gastrointestinal, so that the effect of the drug better play. At the same time, patients should pay attention to drink more water, rest more, eat more fresh vegetables and fruits, and avoid spicy and stimulating food during the cold. Because persimmons contain more tannic acid and pectin, they can form hard lumps of different sizes with stomach acid, and sometimes they can be retained in the stomach to form persimmon stones, so it is not recommended to eat persimmons for a long time or in large quantities.