If there is no reaction on the first day after chemotherapy, will side effects still appear on the second day? It is possible, as the timing of chemotherapy side effects may vary depending on the specific chemotherapy drugs or the patient's physical condition. Some patients may experience reactions on the same day, while others may take 3-5 days, and some may even have reactions after 1-2 weeks. Therefore, after chemotherapy, it is important to monitor not only the reactions on the first day but also those on the second day, the third day, and even within a week. If any discomfort occurs, it should be addressed proactively.

Of course, there is no need to be overly anxious, as most commonly used chemotherapy drugs primarily cause gastrointestinal or hematological reactions. Severe adverse reactions are relatively rare. Thus, staying vigilant and seeking active treatment is sufficient. If side effects are more severe, traditional Chinese medicine can be incorporated into the treatment plan.