If you’ve recovered from COVID but still feel “off,” you’re not alone. Millions of people are struggling with persistent symptoms months after infection—a condition known as Long COVID (or post-acute sequelae of SARS-CoV-2, PASC). Among the most common complaints? Brain fog, fatigue, and inflammation.
But why do these symptoms linger? And more importantly—what can you do to recover?
At Sheen Vein & Cosmetics, we take a functional medicine approach to Long COVID, helping patients address the root causes of lingering symptoms and support true recovery. In this blog, we’ll break down the science behind Long COVID, how inflammation and brain fog are connected, and what you can do to feel clear, sharp, and energized again.
Long COVID refers to symptoms that persist for weeks or months after the acute phase of COVID-19. You may have tested negative and “recovered,” yet still experience:
These symptoms often come and go, and they can vary in severity day to day. It’s frustrating, unpredictable, and deeply misunderstood by many traditional providers.
Many people with Long COVID describe a mental state that feels like:
“My brain is in a cloud.”
“I can’t think clearly or focus.”
“I forget simple things.”
“I’m mentally exhausted all the time.”
This is brain fog—a type of cognitive dysfunction that impacts memory, concentration, processing speed, and mental clarity. It's not just “in your head”—there are real biological mechanisms behind it.
Here’s what’s happening under the surface:
COVID triggers an intense immune response. In some individuals, this leads to chronic inflammation in the brain, particularly in areas responsible for memory and cognition.
The result: slower processing, fatigue, and mental fog.
Mitochondria are the energy factories in your cells—including brain cells. COVID (and other viruses) can damage mitochondria, reducing your body’s ability to produce ATP—your main energy currency.
This leads to:
Some Long COVID cases involve remnants of the virus persisting in tissues—or reactivation of latent viruses like Epstein-Barr Virus (EBV).
These infections quietly stoke the immune system, keeping you in a low-grade inflammatory state that blocks healing and contributes to brain fog, fatigue, and autoimmunity.
COVID can damage the autonomic nervous system, which regulates heart rate, blood pressure, and breathing. This can lead to:
When your brain isn’t getting enough oxygen and blood flow, your cognitive performance suffers.
At Sheen Vein & Cosmetics, we don’t just suppress symptoms—we ask why they’re happening. Here’s how we approach Long COVID recovery:
We dig deeper with:
This helps identify hidden imbalances that standard labs often miss.
We use a high-antioxidant, anti-inflammatory diet to calm the immune system and support the brain.
Key foods to include:
Foods to avoid:
Depending on testing, we may recommend:
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Photobiomodulation (red light therapy) has been shown to:
PEMF therapy can improve circulation, reduce pain, and support the nervous system.
We offer full-body red light beds with PEMF technology to support whole-body and neurological recovery from Long COVID.
Over 70% of your immune system resides in your gut. COVID can disrupt the microbiome and gut lining, triggering widespread inflammation and immune dysfunction.
We use:
Improving gut integrity is essential to resolving brain fog and fatigue.
If you feel like your body hasn’t been the same since COVID, trust that it’s not “just in your head”—and you’re not alone. Long COVID is real, complex, and deeply tied to immune and neurological inflammation.
The good news? Functional medicine offers a roadmap out.
By identifying root causes like chronic inflammation, mitochondrial dysfunction, viral reactivation, and gut imbalances, we help patients get real answers—and real healing.
At Sheen Vein & Cosmetics, our functional medicine team is trained to support Long COVID recovery through personalized, science-based care. We help you reconnect the dots between your symptoms, labs, and lifestyle—and build a clear path forward.
Schedule your consultation today and take the first step toward clarity, energy, and recovery.