What are the symptoms after 3 days of infection with Omicron?

Generally, about three days after infection with Omicron, common symptoms mainly include fever and sore throat, cough with phlegm, fatigue and drowsiness, nasal congestion and runny nose, as well as reduced sense of taste. A detailed analysis is as follows:

1. Fever and sore throat: Fever is a typical symptom following infection. On day three, some individuals may still experience low-grade or moderate fever, with body temperature mostly between 37.3°C and 39°C. Headaches may accompany the fever. Sore throat often presents as dryness in the throat and sharp pain when swallowing; in severe cases, even drinking water or speaking can cause discomfort.

2. Cough with phlegm: At this stage, coughing is mostly paroxysmal dry cough, sometimes accompanied by small amounts of white mucus. The cough results primarily from viral irritation of the respiratory mucosa. When lying down at night, secretions in the airways tend to accumulate, which may worsen coughing and affect sleep quality.

3. Fatigue and drowsiness: As the body's immune system fights the virus, substantial energy is consumed, leading to noticeable fatigue, easy exhaustion after physical activity, and heaviness in limbs. Drowsiness may also occur, along with listlessness, difficulty concentrating, and a feeling of exertion even during simple daily tasks.

4. Nasal congestion and runny nose: Viral invasion of the upper respiratory tract causes congestion and swelling of nasal mucosa, resulting in nasal blockage and impaired airflow during breathing. Some people may need to breathe through their mouths. Runny nose is typically clear and watery, and frequent wiping may lead to redness and irritation around the nostrils.

5. Reduced sense of taste: Some individuals may experience decreased taste sensitivity, perceiving sweet, sour, bitter, and salty flavors more faintly, or feeling that food tastes like chewing wax. This symptom usually gradually improves as the condition resolves. During this period, adjusting food flavors appropriately can help maintain adequate nutrition.

During the course of infection, it is important to ensure sufficient rest, drink plenty of warm water to promote metabolism, eat light and easily digestible foods, and avoid spicy or irritating foods to support faster recovery.