Is the flu symptom severe in the later stage of type B influenza?

The severity of cold-like symptoms during the later stage of influenza B varies from person to person due to individual differences. During the later phase of influenza B, a series of relatively prominent cold-like symptoms may occur. 1. Systemic symptoms may be particularly noticeable, including muscle aches throughout the body, fatigue, malaise, headache, and dizziness, all of which can cause significant discomfort. Additionally, persistent high fever and chills may appear, indicating that the virus remains active in the body. 2. Upper respiratory symptoms may also be severe, such as hoarseness, dryness and sore throat, runny nose, nasal congestion, coughing, and phlegm production. These symptoms can significantly affect the patient's daily life. Therefore, during peak influenza B season, individuals should remain vigilant and take preventive measures.