In the clinic, I often hear, “My head still does not feel clear even after isolation ended,” or “When I try to work, I cannot stay focused for long.” Cough or body aches may have lessened, but fatigue, fogginess, headaches, dizziness, changes in smell or taste, and indigestion remain and disrupt the rhythm of daily life. If this pattern repeats, it may not simply mean weak willpower; it may be a sign that the body has not fully completed its recovery process.
What does brain fog feel like?
Brain fog is not so much a disease name as an expression that refers to cognitive discomfort, as if there is fog in the head. Decreased concentration, feeling that words do not come to mind right away, reduced memory, fogginess, and sleepiness may occur together. Similar patterns can also occur not only after infection, but when lack of sleep, chronic stress, accumulated fatigue, and breathing discomfort due to nasal congestion overlap.
The foundation of recovery is healthy qi and digestive strength
In Korean medicine, the strength to overcome illness and recover the body is viewed in relation to healthy qi. When healthy qi has weakened, you may become tired easily even with the same activities, the head may feel heavy, and digestion may slow, making it harder to replenish energy through food. Therefore, when we look at fatigue and brain fog after COVID-19, we do not separate only the head symptoms; we also assess appetite, bowel movements, sleep, sweating, temperature sensations, and the condition of the nose and throat.
We also assess stuffiness in the nose and head
After infection, if the nasal mucosa becomes sensitive or swollen and nasal breathing becomes uncomfortable, sleep quality may decrease and the head may feel heavy. In this case, we look together at acupoints around the nose, neck and shoulder tension, and circulation in the head, and choose acupuncture treatment, pharmacopuncture treatment, heat therapy, and other care according to constitution and symptoms. Herbal medicine is prescribed in a direction that may help the body’s recovery capacity after checking digestive function, fatigue patterns, and whether cough or phlegm is present.
We recommend a consultation in these cases
- When fogginess, fatigue, headaches, or dizziness interfere with daily life for more than 2 weeks after infection
- When you do not feel refreshed even after sleeping, and daytime sleepiness or reduced concentration is severe
- When cough, phlegm, nasal congestion, or changes in smell or taste continue for a long time
- When reduced appetite, bloating, diarrhea, or constipation occur together
- When sudden paralysis, slurred speech, decreased consciousness, severe chest pain, or difficulty breathing is present, so you should use 119 or the emergency room first
Lifestyle management affects the pace of recovery
- Keep wake-up and bedtime consistent, and reduce screen exposure before sleep.
- Start with light walking and stretching rather than strenuous exercise.
- It is best to reduce alcohol and late-night meals, as they may interfere with sleep and digestive recovery.
- Drink small amounts of water often, and eat regular warm meals that are easy to digest.
Feeling that your body is not the same after COVID-19 can be very uncomfortable and frustrating. However, having lingering symptoms does not mean everyone has the same cause or needs the same treatment. I recommend calmly checking where your body is having difficulty recovering, and adjusting sleep, digestion, breathing, and fatigue together.